Clinical blisters on the mouth is common, causing blisters on the mouth for a number of reasons, no matter what the cause, blisters on the mouth, if you want to quickly cure should do the following: 1, diet to avoid spicy, greasy, stimulating food, can not eat chili, onions, garlic, etc., to eat more vitamin C-rich vegetables and fruits, such as kiwi, oranges, apples, cucumbers, direct oral vitamin B 2, local can use erythromycin ointment, mupirocin ointment topical, 2-3 times a day for about 7 days will have good results, can be topical red light irradiation, red light is a physical therapy, infrared light has anti-inflammatory, anti-itch, pain, anti-infection, promote the function of skin repair.