There are very many reasons for touching up pimples on the face, such as perifollicular keratosis, allergic factors, and inadequate cleaning. 1. Keratosis Pilaris: Keratosis Pilaris may be related to endocrine, genetic, metabolic and other factors, and may show symptoms such as follicular keratin plugs, keratinized pimples, and even some patients will show erythema around the hair follicles, resulting in the phenomenon of pimples and bumps when touched on the face. 2. Allergic factors: face allergies to skin care products, cosmetics, or contact with allergic substances, can also lead to the phenomenon of pimples and bumps on the face, accompanied by significant itching, peeling, oozing, vesicles and other symptoms. 3. Cleaning is not in place: face touch up pimples and bumps may also be due to daily skin cleaning is not in place, due to skin aging keratin can not be cleaned in time, residual on the surface of the skin, which will cause symptoms. The cause of pimples on the face is very many reasons, after the symptoms, it is recommended that patients go to the hospital in a timely manner to improve the examination, a clear diagnosis, to give targeted treatment, not to ignore the symptoms, to take it lightly.