He is now having problem of perspiration

Hyperhidrosis, or excessive sweating, is a common disorder where neurologic, endocrine, infectious, and other systemic diseases can sometimes cause hyperhidrosis, most cases occur in people who are otherwise healthy. Heat and emotions may trigger hyperhidrosis in some, but many who suffer from hyperhidrosis sweat nearly all their waking hours, regardless of their mood or the weather. I would advise that you visit a dermatologist and get evaluated and undergo further investigations to find the underlying cause. The treatment options are: - Antiperspirants containing a low dose of metal salt (usually aluminum) are usually tried first because they are readily available. Antiperspirants containing aluminum chloride (for example Certain Dri) may be more effective when other antiperspirants have failed. - Iontophoresis, a device which passes ionized tap water through the skin using direct electricity. - Oral medications, Anticholinergics reduce sweating. - miraDry. This technique uses microwave energy to permanently kill sweat glands. - Lasers. Lasers can target and kill the underarm sweat glands. - Surgery. A procedure called thoracic sympathectomy may be considered as a last resort. Kindly visit the dermatologist and find the underlying cause