Chicken skin is a condition in which the skin exhibits a chicken-skin-like appearance, medically known as perifollicular keratosis, a follicular keratinization abnormal skin disease, which is mainly characterized by follicular papules resembling chicken skin bumps and feels rough to the touch. It is mainly characterized by follicular pimples that resemble goose bumps and are rough to the touch. It can be relieved by topical ointments such as retinoic acid cream, salicylic acid ointment, and urea ointment. 1. Retinoic acid cream: mainly used for the treatment of acne vulgaris and keratosis pilaris. Adverse reactions such as erythema, swelling, flaking, crusting, increased or decreased pigmentation may occur at the site of application. Pregnant women, acute or subacute dermatitis and eczema skin disease patients are prohibited, children should be used with caution, the use of the site should be avoided sun exposure. 2. Salicylic acid ointment: can be used for tinea capitis, tinea pedis and local keratosis. There may be irritation or contact dermatitis and other adverse reactions after using the medicine, it should not be used in broken skin, and should not be used in large area to avoid absorption of poisoning. 3. Urea ointment: for skin keratosis, cracked hands and feet, dry skin disease, ichthyosis. Adverse reactions are not clear, but pregnant women should be used with caution, and should not be used over a large area. Avoid contact with the eyes when using, such as rubbing the site of burning sensation, itching, redness, swelling, etc., should stop using the drug and wash. The use of the drug should be guided by a doctor according to the condition, not blindly use the drug on their own. If there is any discomfort after using the medicine, you should consult a doctor promptly.