The blisters in the mouth are considered to have the following conditions: 1, genital herpes caused by herpes simplex type 2 virus infection: usually occurs after unclean sex, can appear clustered distribution of blisters, broken, bright red vesicles and other performance, at this time need to take oral acyclovir tablets or famciclovir tablets for antiviral treatment, usually in the treatment of 5-7 days rash can be healed; 2, common aspergillosis: this disease is The clinical treatment requires the application of glucocorticoid drugs for intramuscular injection, which can be selected from the compound betamethasone injection, and also oral methylprednisolone tablets for treatment.