Follicular keratosis is not a disease, the general arm follicular keratosis is mostly follicular keratosis, follicular keratosis on the arm can be removed through medication, physical therapy, surgical treatment and other ways. 1. medication: patients with follicular keratosis pilaris on the arm can follow the doctor’s instructions for external use of salicylic acid ointment, urea ointment and other drugs, which can make the keratin dissolve and fall off. 2. Physical therapy: patients can also choose pulse dye laser treatment, can effectively improve the symptoms. For stubborn follicular keratosis pilaris, photodynamic therapy can be chosen, which can make the permeability of cells increase, so as to remove follicular keratosis pilaris. 3. Surgery: If conservative treatment is ineffective, you can also remove keratosis pilaris by grinding surgery. There are more ways to remove follicular keratosis pilaris on the arm, so it is recommended to go to regular hospitals and cooperate with doctors for standardized treatment.