When people come in contact with poison ivy, the urushiol can cause an allergic skin reaction that produces reddish, itchy, and painful inflammation of the skin (dermatitis). Close relatives of poison ivy plants that produce similar dermatitis symptoms are poison oak and poison sumac.
Health conditions that may cause excessive sweating include: 1  Diabetes. 2  Endocarditis. 3  Fever of undetermined cause.  Generalized anxiety 1  disorder. Hiatal hernia.  Heat 1  exhaustion. HIV/ 2 AIDS. Hyperhidrosis.  Hyperthyroidism (overactive 1  thyroid) 2  Leukemia.  Malaria.
The menopausal transition in women is a common cause of night sweats. Less common causes of night sweats include infections and cancers. Hot flashes, night sweats, and other symptoms of approaching menopause can precede menopause by many years. Treatment of night sweats is directed at the underlying cause. Certain medications, hormone disorders, neurologic problems, and hypoglycemia (low blood sugar) are other possible causes of night sweats.