I have sweaty palms, armpits and forehead.tried using antiperspirant soaps but no effect.im 20 and average built..younger brother same prob.please help?

Sure: You may have hyperhidrosis. This is excessive sweat production. There are also some diseases that cause too much sweat production, but most commonly it is just overactive sweat glands. Weight loss may help if your overweight, also Botox maybe a treatment for you. See your doctor.

Excess sweating: I agree that Botox may be helpful but it has some limitations and only lasts usually 3-7 months for the underarm. Miradry is a new treatment for the under arm excessive sweating which has been shown in scientific studies to decrease sweating over 80% for over 3 years using microwave technology. It is felt by many dermatologists to be permanent as the sweat glands seem to be permanently destroyed.