It can only be removed surgically, and the sooner the better, because after repeated infection, the operation will be more complicated and the scar will be bigger due to scar contraction.

There is also: preauricular fistula, or congenital preauricular fistula, is the remains of the first branchial fissure groove in embryonic period. Multiple unilateral attacks. Fistula is often located in the front foot of helix. Fistula can form branches or branches. The inner wall of the tube is lined with multiple layers of squamous epithelium, and there are exfoliated epithelium and keratin in the lumen. Due to infection and corruption, it can secrete stinky tofu-like secretions. The disease is usually asymptomatic, and occasionally a small amount of mucus or pus overflows from the fistula during extrusion; When infected, the local area can be red, swollen and painful or form abscess, or purulent secretion increases; Repeated infection and suppuration can form local suppurative fistula or scar.

Generally speaking, asymptomatic people do not need treatment. If there is infection and suppuration, you can give antibiotics or sulfonamides, such as penicillin, 800,000 units each time, intramuscular injection (pay attention to allergy test); Or erythromycin, 0.25g each time, three times a day, orally. If abscess is formed, it should be cut and drained in time, cleaned and disinfected locally, and iodophor gauze should be replaced; When the redness disappears and the infection is controlled, fistula resection is feasible and must be completely removed at one time, otherwise the infection of the remaining fistula will recur and the effect of reoperation will be poor.