The doctor suggested that if it is a frequent attack, it is better to go to the hospital to find out the cause and then symptomatic treatment is better. If the frequency of occurrence is not very high, you can use metronidazole and other drugs for two or three days to see if it can play an anti-inflammatory effect, but pregnant women and people with allergies are not suitable. If the inflammation is relieved, there is no real treatment and solution to the problem, so you can’t feel that it is over, so just leave it alone, otherwise it may recur.