Hyperhidrosis Injections cause sweat gland signals to be blocked, providing long-lasting dry and comfortable relief. Surrounding muscles and contours remain unaffected creating uninhibited movement and freedom. Despite common belief, sweat is not transferred to another gland, creating further problems. The over-producing gland is simply ceased. As each case of hyperhidrosis is individual, an assessment is paramount to determine the exact areas to be treated and how much product is required. Treatment for both underarms may be performed in approximately 45 minutes and are relatively painless.