Razor bumps are referred to medically as pseudofolliculitis barbae (PFB). Technically, razor bumps result from a curly hair growing out of the skin, curling around and then growing back in.
Ideally, hairs are cut off flush at the surface of the skin during shaving with minimal friction and irritation to the surrounding skin. In people with a tendency towards razor bumps, ingrown hairs and similar problems, the hairs are often cut too short during shaving. This may result in hairs that...

Razor bumps are referred to medically as pseudofolliculitis barbae (PFB). Technically, razor bumps result from a curly hair growing out of the skin, curling around and then growing back in.
Ideally, hairs are cut off flush at the surface of the skin during shaving with minimal friction and irritation to the surrounding skin. In people with a tendency towards razor bumps, ingrown hairs and similar problems, the hairs are often cut too short during shaving. This may result in hairs that curl back into the skin rather than grow out. These ingrown hairs can cause pain, unsightly red or darkened bumps and, in severe cases, scarring. The same shaving patterns that tend to contribute to razor bumps and ingrown hairs may also result in irritated skin. In order minimize these shaving related problems, there are four key points to keep in mind when shaving:

Shave at the end of the shower or after the hair has been wet at least five minutes. Hair that is wet through and through cuts like butter, a good razor blade will cut through it smoothly and effortlessly. Hair that is not completely wet, however, can be as strong as reinforced concrete. Cutting through such tough hair often causes hairs to be pulled up from their follicles as they are being cut. These hairs then retract below the flush surface of skin where they are at risk for curving back into the skin as they grow rather than out through the follicle. The forces required to cut such hair also can translate into more friction on the skin that can promote irritation.

Shave with downward strokes. (Go with the grain.) Shaving in the same direction that the hair lies (typically down) will result in less pull on the hairs and less tendency to cut them too short. Hairs cut too short are at risk of curling into the skin while growing and causing razor bumps and ingrown hairs. Shaving with the grain will also minimize skin irritation.

Minimize repeat shaving strokes. Think of shaving as equivalent to mowing the lawn. Not only is it a waste of time and energy in each case to go over and over the same area, but repeated shaving or mowing may result in things being cut too short. On the skin, repeated shaving strokes increase the risk of ingrown hairs and skin irritation. It is best to shave with just enough overlap to avoid skipping areas.

Shave with the skin in a neutral relaxed position. This is the best way to shave hair close but not too close. Sometimes the skin must be stretched very slightly to allow the razor to pass smoothly without nicking. Excessive tightening of the skin when shaving, however, tends to result in hairs being shaved below the resting surface of the skin. This occurs because as the skin is stretched tight the hairs actually protrude out a bit farther than when the skin is relaxed. Shaving over stretched skin may cut the hairs below the flush surface of resting skin, increasing the risk of ingrown hairs and also increasing the risk of skin irritation.

In addition to these universally helpful strategies, many people find benefit in the use of certain shaving devices and products. The products and devices tend to be specialized towards serving either those people with tendencies toward ingrown hairs or those with a tendency towards razor bumps and PFB. A large majority of PFB sufferers and suffers of shaving problems generally tend to be African American. The reason for this is that very curly hairs are most inclined to grow inward or curl around to form razor bumps. For purposes of discussion, we will review the treatment of ingrown hairs and shaving irritation separately from the treatment of PFB and razor bumps.

Ingrown hairs and shaving irritation can be greatly improved by simply following the four suggestions enumerated above. No special shaving equipment is suggested, but experience has shown that re-usable metal shaving handles serviced with disposable blade cartridges tend to provide smooth shaves with less chance of causing shaving irritation and ingrown hairs than electric razors. Blades should be changed at least once every ten days, more often if skin irritation persists. Disposable razor blades should are also best avoided when possible. Shaving gels are important in the treatment of this condition, as a good gel will minimize the friction associated with shaving and reduce the likelihood of ingrown hairs and skin irritation. Skin Source is a product that can be applied daily after shaving. It is effective at fighting ingrown hairs and helps calm redness associated with hair removal.

People with PFB and razor bumps often have a great tendency to develop ingrown or curled under hairs, which get red, raised and tender. These bumps often leave dark marks on the skin for many months and sometimes even cause scarring. While PFB can occur in all ethnic groups, it is most common in those with very curly hair and especially amongst African Americans. Treatment of tough cases of PFB often requires special shaving equipment. In fact, some African American men have opted to wear a beard rather than be subject to the pain and embarrassment that often accompanies severe PFB. Special razors have been developed that cut the hair slightly longer than typical razors. These razors are available as part of an entire product line called the Bump Fighter ® Shaving System designed exclusively to help control PFB. In addition to these products, Skin Source is also helpful for many PFB suffers.

For most people, these over the counter products provide sufficient control of shaving related problems. In fact, there are no prescription products targeted specifically for shaving related problems. Vitamin A related products such as Retin A (tretinoin) or Differin (adapalene) may be prescribed in some cases and work by helping exfoliate skin both on the surface and around the follicles. This results in less chance of the hairs getting caught in the skin and growing inward.

Shaving related problems usually respond well to a combination of proper shaving technique, equipment and products. For tough or treatment resistant shaving problems, it is always best to consult personally with a dermatologist.

You get razor bumps when you use dirty blades and bad shaving technique. The hair tips are separated from the hair shafts; and grow curling, into the sidewall of the skin follicles. As the sharpened hair tips grow, they penetrate the skin. The skin gets irritated, and develops pimples, cysts, pustules, or papules.

You can ask your dermatologist for a cure or try some of these methods:
...

You get razor bumps when you use dirty blades and bad shaving technique. The hair tips are separated from the hair shafts; and grow curling, into the sidewall of the skin follicles. As the sharpened hair tips grow, they penetrate the skin. The skin gets irritated, and develops pimples, cysts, pustules, or papules.

You can ask your dermatologist for a cure or try some of these methods:
1. Squeeze the gel off an Aloe Vera leaf and apply to your razor bumps. Let the
gel dry on your skin., or;
2. Crush two uncoated aspirins; let it dissolve in warm water. Rub the runny
paste on the newly shaved areas. Let it stay for five minutes. Wash this off
with warm water.

Razor bumps are not uncommon to men with coarse or curly hair. They are especially common for black men, with some people estimating up to 30 or 40% of black men may experience bumps. The process of blade shaving can cut the hair at an angle, making it sharp. Curly hair then sometimes curls back toward the skin and can puncture the skin and become ingrown. This leads to red bumps and skin irritation, which can be very painful for some men. The technical name for razor bumps is pseudofolliculitis barbae (often abbreviate...

Razor bumps are not uncommon to men with coarse or curly hair. They are especially common for black men, with some people estimating up to 30 or 40% of black men may experience bumps. The process of blade shaving can cut the hair at an angle, making it sharp. Curly hair then sometimes curls back toward the skin and can puncture the skin and become ingrown. This leads to red bumps and skin irritation, which can be very painful for some men. The technical name for razor bumps is pseudofolliculitis barbae (often abbreviated PFB).
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The following steps may reduce your chance of suffering from razor bumps:

- Make sure to get your hair very wet before shaving, ideally after taking a bath or shower. If you don't shower first, wet your hair for at least two minutes with warm, soapy water. Wet hair cuts better and easier than dry hair, and is more likely to cut evenly (and not at an angle).
- Use a good shaving cream to reduce friction and irritation. Really work the shaving cream into your scalp for at least two minutes, and save areas that tend to develope bumps for last when you're shaving, so that the shaving cream has longer to soften the hair.
- Shave with the grain, not against it.
- Don't go over the same area more than twice.
- Don't stretch out your skin while shaving; let is stay neutral and relaxed. Stretching your skin while you shave increases the chance that the hair will 'snap back' to below skin level.
- Replace your blade regularly. Shaving with a dull blade increases the chances of hair tearing unevenly.
- Use a single-blade razor instead of a double- or triple-blade razor. The 'lift and cut' effect of multi-blade razors is something people with PFB generally try to avoid.

Some people who suffer from razor bumps might prefer using a depilatory (like Nair or Neet) instead of a razor. Depilatories work by dissolving the hair so it can be washed off. The chemicals used in depilatories are strong, and may cause irritation. There's a little more information about them in this article.
Treatment

If you're already suffering from razor bumps, keep the following points in mind:

- Before anything else, let your hair grow out for a while and give your skin a rest before shaving again (a minimum of three days).
- Bumps can get infected fairly easily, so tend to them immediately. Using a local antibiotic will probably help, especially if there's a cut.
- Don't pick at or squeeze bumps. That will tend to make things worse.

A recent treatment for razor bumps is called eflornithine hydrochloride 13.9 percent, usually called Vaniqa (made by Bristol-Myers Squibb). It's a prescription drug used to remove facial hair for women, but it's apparently proven effective in controlling and treating razor bumps as well. Since it's a prescription drug, you'll have to talk to your doctor about it.

This part is a repost but the answer is the same

Razor bumps, also called pseudofolliculitis barbae, are small, irritated bumps on the skin. They develop after shaving, when strands of hair curl back on themselves and grow into the skin.

...

This part is a repost but the answer is the same

Razor bumps, also called pseudofolliculitis barbae, are small, irritated bumps on the skin. They develop after shaving, when strands of hair curl back on themselves and grow into the skin.

http://www.webmd.com/skin-prob...

Personally I use a product called bump patrol (shaving gel and aftershave) works really well


And here are some more tips from http://www.getridofthings.com/...

First of all, don’t shave every day if you suffer from regular razor bumps. Give your skin about 2-3 days of rest in between close shaves with a blade. You may want to consider an electric razor or beard trimmer for the other days to make sure your facial hair doesn’t get out of control. If you’re only shaving your head or your legs, hair shouldn’t become too unmanageable to give your skin that 2-3 days of rest between shavings to avoid razor bumps.
Softening your hair with warm water will help you get a better shave and get rid of razor bumps. Because razor bumps are sometimes caused by an angular cut from a razor, it is a good idea to soften the hair to ensure a more even cut through the hair. This can be done in a number of ways, but here are two: either wait to shave until you’ve taken a shower, or you can get a wash cloth and soak it in hot water and then put it across your face for about 5 minutes before shaving. Both of these razor bump reducing strategies are relaxing, but you’ll have to make time in your busy day for both of them.
Proper shaving techniques are the key to getting rid of razor bumps. Here are some rules to follow. Always apply shaving cream (a good one) to the skin before shaving and allow the shaving cream to sit on your face for a couple of minutes before shaving to help it soften the skin and hair. Never shave against the grain of your hair. And whatever you do, don’t shave the same area more than twice to get a closer shave. If you can avoid using those trendy 2, 3, and 4 blade razors, you should because those blades tend to lift and snap the hair back into place, giving you a closer shave and causing razor bumps.
Rinse your shaving razor with rubbing alcohol before and after every use, and change the blade at least once a week to get rid of razor bumps. Because razor bumps tend to form just after a shave, you want to make sure there are as few bacteria on your face as possible. Bacteria tend to grow on razors and blades just as easily as they grow on a toothbrush. Keeping your blades sterile with a quick wipe down with rubbing alcohol will ensure a safer shave every time, preventing razor bumps.
If you’re still getting razor bumps, don’t pick or squeeze the bumps, and stop rubbing your face if you want to get rid of razor bumps. If your skin is particularly irritable, you may want to consider trying a local antiseptic or antimicrobial treatment (perhaps alcohol based) to help numb the area and prevent further infections. This should most certainly be done if you get nicks, cuts, and scrapes from shaving with a blade. Iodine, tea tree oil, or any alcohol based aftershave will help prevent razor bumps from getting infected.