Small blisters (medically known as blisters) on the side of the lips, the first consideration is herpes simplex, and secondly, stomatitis may also cause the above symptoms.
1. Herpes simplex: after being infected by the herpes simplex type 1 virus, the herpes virus will incubate in the human body, and when the body’s immunity decreases, the herpes virus will attack the lips, resulting in small blisters on the side of the lips.
2. Keratitis: malnutrition, bad contact, trauma, and bacterial fungal infections that cause keratitis. Symptoms vary from patient to patient for different types of xerostomia, which may result in blister-like damage to the corners of the mouth.
The appearance of small blisters on the side of the lips is also important to know if they are related to burns. It is recommended to take good care of the local area, but also to go to the hospital and give appropriate medication, which can promote the recovery of the lesions.