Keratosis pilaris, or perifollicular keratosis, can be characterized by granular papules on the thighs and upper arms that are rough to the touch, and is treated with medication. Keratosis pilaris is usually characterized by granulomatous papules on the thighs and upper arms, which can be skin-colored, red, white, or brownish-black, and rough to the touch. The main treatment for keratosis pilaris is medication. Patients can follow the doctor’s instructions to apply retinoic acid cream, salicylic acid ointment and other ointments, serious cases can follow the doctor’s instructions to take oral isotretinoin capsules treatment. If keratosis pilaris occurs, it is recommended that the patient consult a doctor in time and strictly follow the doctor’s instructions to carry out the appropriate treatment.