Hyperhidrosis or excessive sweating can be frustrating and embarrassing. It most often affects the underarms, palms of the hands, soles of the feet, and head. It can occur when the nerves that control perspiration become overactive. Depending on the cause of your hyperhidrosis, there are different options to help address and control the excessive sweating. Botox injections can be a highly effective option, and can last for about 6 months. Excessive sweating can be a treatable condition that you don’t have to tolerate.