Hyperhidrosis that can be treated with Botox is divided into: facial hyperhidrosis, palmar hyperhidrosis, plantar hyperhidrosis, and axillary hyperhidrosis. Facial hyperhidrosis includes the forehead, “creeping baldness”, full scalp, and forehead and full scalp types. What conditions causing hyperhidrosis should be ruled out before Botox treatment? Perimenstrual syndrome, diabetes mellitus, etc., drug effects. How can the extent of the injection be determined more precisely? A test is performed prior to injection, i.e. after cleaning, the suspected sweating area is first applied with sterilized commonly used iodophor and then with starch; the sweat will give the sweating area a spotted purple color. What is the principle of botulinum toxin injection for hyperhidrosis? By blocking the release of acetylcholine from the postganglionic fibers that innervate the glands, thereby inhibiting glandular secretion. What are the levels of injection for botulinum toxin for hyperhidrosis? The junction between the dermis and the subcutaneous tissue. How long does Botox last for hyperhidrosis? The effect of routine injections usually lasts 4-6 months, with longer intervals as the glands atrophy and the symptoms diminish or disappear after several intervals of treatment. How long does it take to see the results of Botox treatment for hyperhidrosis? Results can be felt in 4 to 5 days and peak in 1 to 2 weeks. What complications can occur? Infection, bruising, redness and swelling at the injection site, etc. Some adverse reactions may also occur on the face (e.g. forehead injection may result in drooping eyebrows, asymmetrical eyebrows, hanging eyebrows, etc., and nose injection may result in inability to move the nose and shallowing of the nasolabial folds, etc.). How to avoid changes in the position and shape of the eyebrows while treating hyperhidrosis? First of all, the injection site should avoid the arch of the eyebrow which is located more than 2cm above the eyebrow, and secondly, attention should be paid to keep the injection site on both sides symmetrical and the injection dose even.