What’s this red rash around my mouth?

A circle of red rash around the mouth is usually related to seborrheic dermatitis, perioral dermatitis, herpes orofacialis and allergy, which can be treated with medication.
1. Seborrheic dermatitis: a circle of red rash around the mouth may be seborrheic dermatitis, which is related to the excessive secretion of sebum and Malassezia infection, and the main symptom is a red rash. You can use 0.1% dexamethasone ointment and selenium disulfide lotion according to the doctor’s instructions to relieve the symptoms.
2. Perioral dermatitis: a circle of red rash around the mouth may be perioral dermatitis, lesions are usually scattered red papules, papules, can be covered with scales. If the symptoms are serious, it can be treated with topical erythromycin ointment and 5% sulfur lotion.
3. herpes orofacialis: a circle of red rash around the mouth may be herpes orofacialis, usually caused by herpes simplex virus infection, manifested as localized flushing, long small blisters, shaped like a red rash. It can be treated with oral acyclovir tablets and vasiclovir tablets according to medical advice.
4. Allergy: If the perioral contact with mango, pineapple and other foods that can lead to allergies, the phenomenon of a circle of red rashes around the mouth can occur, usually accompanied by itching. If necessary, oral cetirizine, loratadine and other anti-allergy drugs.
A red rash around the mouth may also be due to other reasons, should be timely medical care, to identify the cause of the disease, targeted treatment, the use of drugs need to follow the doctor’s instructions, do not self-medication.