The condition of a patient’s armpit breaking out has to be analyzed specifically. It is possible that the patient himself belongs to the more obese, especially on children, if they are fat and sweat more in the armpit, it is easy to occur inter-rash. This situation patients can apply boric acid solution for wet compresses, and after the local exudation is reduced, then with erythromycin ointment or mupirocin ointment topical application. There are also patients who have a bacterial infection in their armpits, such as clinical folliculitis, carbuncle, and purulent sweat gland infection, which can lead to a significant breakout in the armpit. When bacterial infection occurs, patients are advised to apply topical, oral, or even intravenous antibiotics for treatment. If the localized pus is more serious, an incision to drain the pus is also required. Other patients have rotten armpits, caused by prolonged inflammatory stimulation. For example, this part of the patient may have a long time fungal infection, or have skin allergies, eczema and other symptoms, a long time repeated skin inflammation will lead to a significant thickening of the local skin, and the patient repeatedly scratch, repeated scratching will also cause obvious skin ulceration after the occurrence of the situation. For this situation, you can apply boric acid solution for wet compresses, and after the local exudation is reduced, you can apply ketoconazole and miconazole drugs for fungal infections. In case of skin allergy, glucocorticoids can be considered for treatment.