The common causes of reddened skin at the corners of the mouth like ringworm include cosmetic dermatitis, seborrheic dermatitis, and xerostomia.
1. Cosmetic dermatitis: this disease is mainly due to the long-term use of cosmetics, exposure to chemicals in cosmetics, such as hormones, antioxidants, etc., so that the structure of the surface layer of the skin is destroyed, but also may be a long-term use of cosmetics containing a large number of hormones, and suddenly stop using them, prone to side effects, cosmetic dermatitis, manifested in the corners of the mouth redness of the skin and peeling and other symptoms.
2. Seborrheic dermatitis: the cause of this disease is unknown, can be caused by genetic factors, fungal parasites, impaired function of the skin stratum corneum, mental factors, etc., manifested as erythema covered with greasy flakes, accompanied by mild itching and other symptoms.
3. Keratitis: this disease can be caused by fungi, bacteria, viruses and other pathogenic microbial infections, can also be caused by allergies or corners of the mouth by pulling, impact, friction and so on. Performance for the corners of the mouth area redness and skin like ringworm and other symptoms.
It is recommended that patients combine their own situation, if necessary, to the regular hospital dermatology consultation, follow the doctor’s instructions to clarify the diagnosis, timely treatment.