Boys underarm odor may be caused by physiological factors, need to pay attention to clean; or due to fox odor caused by medication, surgical treatment can be eliminated. Physiological factors include frequent exercise easy to sweat, not timely clean odor, need to maintain local hygiene. The exact pathogenesis of halitosis is not clear, may be related to heredity, mainly manifested as a special pungent odor emanating from the armpits. 1. medication: medication is suitable for patients with mild symptoms. Local topical antibacterial agents, such as trichlorodiphenylurea, zinc pyridinium sulfate, etc.; topical perspiration inhibitors, such as aluminum chloride anhydrous ethanol solution; topical deodorants, such as armpit powder, zinc oxide nylon powder, etc., but also can be injected into the armpit A botulinum toxin to achieve deodorant purposes. 2. Surgical treatment: Surgical treatment is suitable for patients with severe symptoms. Generally, it is divided into traditional surgical treatment and micro-incision surgical treatment, which will destroy and remove the sweat glands, so as to achieve the purpose of removing the odor. All of the above drugs should be used under the guidance of a professional doctor, avoid self-medication. Boys with odor in the armpit, usually take frequent baths, change clothes diligently, keep the armpit dry and clean, at the same time, you can shave the armpit hair to prevent bacteria from gathering, so as to reduce sweat and odor.