Is brown spot appearing under armpit cancer?

If you suspect that there is a tumor, you need to go to the oncology department in time. If the brown spots on the armpit are round or oval, with a small amount of dander on the surface, consider tinea versicolor caused by fungi. Tinea versicolor is caused by Malassezia dermoides infection, and has a great relationship with wet skin and excessive sweat. Therefore, it is also called sweat spots. Treatment is mainly to keep the skin clean, prevent local moisture, excessive sweating, frequent change of clothes, frequent shower, local anti-fungal bifonazole, liranafate cream, etc. for treatment. When bathing, selenium disulfide, ketoconazole lotion, etc. can also be applied to the body for 5-10 minutes and then washed clean.