Chicken skin, medically known as keratosis pilaris, is a chronic follicular keratosis pilaris. Urea cream can relieve keratosis pilaris to a certain extent, but it is usually difficult to remove it completely. 1. Keratosis pilaris is due to excessive keratinization of the skin follicular opening, causing the skin to be not smooth to the touch, resulting in follicular, raised pimples, with roughness to the touch, often appearing on the cheeks, upper arms, back, thighs and other parts of the body, and genetics has a close relationship. 2. Urea ointment can dissolve and denature keratin, soften the skin and prevent dryness and cracking, which can relieve perifollicular keratosis to a certain extent, but it is usually difficult to remove it completely. Some patients may have adverse reactions such as skin irritation and allergic reactions with urea ointment. It is contraindicated for those who are allergic to the drug. Avoid contact with mucous membranes of the mouth, nose, eyes and other places when using. Keratosis pilaris usually does not require treatment, if the skin lesions are severe it is recommended to visit the hospital and use the medicine under the guidance of a doctor.