Mustache rash, also razor bumps and barber's rash, is a condition where redness occurs around the facial area after a shave. The redness is caused by hair curling and recessing back into the skin and being seen by the immune system as an intruder. These can become infected. Allergies can also be a culprit.
Those who are most prone to razor bumps and barber's rash are people with African-American or African-Caribbean descent. People with curly hair are also susceptible.
Razor bumps are when the hair inverts back into the skin. Swelling and rashes can occur. Sometimes it looks like acne, but it can develop into Barber's rash if it is infected.
This is caused by Staphylococcus aureus, or staph bacteria. Symptoms include redness, itching and puss blisters.
If there are headaches, fevers and non-skin related symptoms associated with facial rash, then it could be an allergic reaction. Some minor allergies include reactions to facial products and cosmetics.
Spending three to four weeks to let your hair fully grow out can straight the follicle and keep it from curling into the skin. Also, replacing blades, using warm water, shaving cream and shaving in the direction of hair growth also helps.