Can hyperhidrosis come back after treatment?

Most hyperhidrosis treatments are not permanent. For example, Botox™ injections to the armpits last 4-7 months, and you’ll need maintenance sessions of iontophoresis treatment. Surgery can provide a more permanent solution, in many cases reducing sweating by up to 50% in the treated areas. However, depending on the type of surgery, new areas of excessive sweating may develop over time.