Answer: Sweating in your armpits is a normal body process that occurs when sweat glands are stimulated by increased blood flow through the lymph system. This is an overactive response to heat, which the human body uses to cool itself off. In fact, sweating can occur at any time of day or night because it has nothing to do with temperature and everything to do with inflammation. Your doctor may recommend antiperspirants or medications if you have excessive sweating in your underarms, but he/she will need more information from you before making a recommendation. If necessary, consult with him/her about what kind of medication might help and whether there are other treatments that might work better for you (such as botox).