Blisters on the lips should be herpes simplex, which mainly occurs when the immunity is low. Prevention is mainly to exercise and improve the body's resistance. After onset 10 days, it can be cured without leaving any trace. Herpes simplex is a viral skin disease caused by herpes simplex virus, which is most common in gums, mouth, mouth, tongue, nose, cheeks or fingers. Blisters rupture after formation, producing exudate. After that, the yellow-white scab shell finally fell off. New skin is formed under the scab shell. Patients with blisters on their lips kiss or use utensils, towels and razors. Wash your hands after contact with herpes simplex. Do not rub your eyes after touching herpes simplex. If you have corneal herpes, you will go blind without treatment. Do not touch the genitals after touching herpes simplex. Otherwise, genital herpes may occur. Replace the toothbrush. Avoid foods containing arginine. Eat foods rich in lysine or directly supplement lysine. Herpes simplex cannot be cured, but it can be relieved with ice cubes and symptomatic drugs. Find some drugs containing anesthetic factors such as phenol and lubricant to reduce ulceration and soften scars. In order to speed up the healing, as long as the ulcer causes pain, zinc hydrate ointment can be used. Have a light diet and don't eat spicy food. There are blisters on the lips that can be used to exercise and enhance immunity: Niuhuang Jiedu tablets, Sanhuang tablets and Shuanghuanglian tablets are all cheap and good drugs. Everyone thinks that clearing the fire of triple energizer is related to vitamin deficiency. Usually pay more attention to eating fruits and green leafy vegetables. If the effect is not obvious, you can add some multivitamins, such as Amway's, and pay attention to drink plenty of water. In addition, it may be related to excessive liver fire. Are you hot? You can eat more bitter things, such as kudingcha, bitter gourd and chrysanthemum tea. Can be alleviated, but the effect is slow.