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Ingrown hair is a condition where the hair curls back or grows sideways into the skin. It may or may not be accompanied by an infection of the hair follicle (folliculitis) or "razor bumps" (Pseudofolliculitis barbae). While ingrown hair most commonly appears in areas where the skin is shaved (beard, legs, pubic region), it can appear anywhere.
Anything which causes the hair to be broken off short with a sharp tip can cause ingrown hair. Shaving is the leading cause, followed by tight clothing. The embedded hair causes a localized inflammation (sometimes painful) response in the skin with prostanoid involvement.
rash (reddened skin area)
hair which remains in spite of shaving
Manually removing ingrown hairs with special tweezers
Shaving in a different direction
Allowing the hair to grow in order to cause the hair to come out straighter
Using special razors that leave the hair longer
Exfoliating with facial scrubs, sponges, towels, or creams containing acids
Treatment with Ibuprofen or other NSAIDs promotes resolution of stubborn cases