What Is the First Treatment for Underarm Sweating?

Axillary hyperhidrosis means sweating from the underarms is greater than needed for cooling and can interfere with clothing, work, or social activities. A prescription antiperspirant is applied to the skin and helps reduce sweat reaching the surface. It is different from deodorant, which mainly masks odour rather than reducing sweat.

Use the prescribed product exactly as directed, often on completely dry skin and at a time that allows it to remain in contact with the area. Do not apply it to broken, freshly shaved, or irritated skin unless your clinician gives different instructions. If stinging or redness develops, pause and ask how to adjust use. If control remains inadequate, a clinician may discuss botulinum toxin injections or microwave sweat gland treatment after reviewing your goals and medical history.

Arrange a medical assessment if sweating begins suddenly, occurs during sleep, affects the whole body, or comes with weight change, fever, chest symptoms, palpitations, or other new illness. Review is also sensible when sweating is one-sided or follows a new medicine. Seek care for severe symptoms such as chest pain, fainting, or difficulty breathing. Persistent underarm irritation from treatment also needs advice.

How should I apply the prescription antiperspirant? What can I use if my skin becomes irritated? Could a medicine or another condition be contributing to the sweating? When would injections or microwave treatment be suitable?