Hyperhidrosis is a condition in which a patient experiences excessive sweating in the face palms underarms and feet according to the area that it affects hyperhidrosis is categorized into facial hyperhidrosis palmar hyperhidrosis axillary hyperhidrosis and plantar hyperhidrosis respectively in one form or another it affects nearly 3 of the uk population a starch test will have to carried out first this is simple and painless and consists of putting iodine in the arm pit and then put