The treatment of blisters (blisters) on the lips should be decided according to the cause of the disease. In the case of herpes, antiviral drugs such as acyclovir can be taken orally; labial inflammation should be selected according to the type of medication. 1. Herpes: blisters on the lips may be caused by herpes simplex or herpes zoster virus infection, causing localized clustered blisters, ulcers and other symptoms. It can be treated with oral antiviral drugs such as acyclovir and famciclovir. 2. Lipitis: allergic lipitis, you can use glucocorticoid ointment, such as hydrocortisone ointment, tretinoin cream; photochemical lipitis, pay attention to avoid ultraviolet irradiation, can be coated with fluorouracil, imiquimod and other drugs treatment. Lip blisters, it is recommended to seek timely medical attention, all drugs need to be used under the guidance of a professional doctor.