Our expert says:
This is called sycosis barbae and quite common. He should not shave close to the skin - rather let him use an electric razor that does not cut the hair too close to the skin but leaves it a half a millimetre or so long. He can use a good antiseptic face wash, Retin-A cream on the area and low dose of antibiotics (50 mg tetracycline) twice a day for a few months. He will need a prescription from your doctor and a letter for the school to allow him a "5 0 clock shadow" If the rash is very bad they should actually not shave at all for a few weeks.
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