When you sweat, your body releases a substance called “apocrine fluid” from the apocrine glands beneath your armpits. The apocrine glands are found in areas of skin that contain sebaceous glands and eccrine sweat glands. They secrete two different types of substances: odorants (also known as odorant molecules) and pheromones—chemicals released by animals to communicate information about their health or condition. You may not be able to smell them, but they can help keep bacteria out of the pores of your underarm hair follicles and prevent acne formation.
The best treatment for sweaty underarms is keeping them clean! Wash with warm water twice a day using antibacterial soap on both sides for at least 15 seconds each time, then pat dry with an absorbent cloth such as cotton towel or tissue paper before showering or sleeping. Antibacterial soaps kill germs on contact, while sulfate-based soaps actually dry up the area’s natural oils which contributes to ingrown hairs and pimples; try unscented mild liquid antiperspirant instead! If you must use deodorant make sure it does not contain aluminum compounds like Aluminum Zirconium Tetrachlorohydrex Gly (Ajax Advanced Care Intensive Care Deodorant).
If this doesn’t work then you will need electrolysis treatment where tiny needles are inserted into individual nerve endings in each hair follicle via local anesthesia; these nerves