Urushiol, is the rash-causing oil found in all parts of poison ivy, poison oak, and poison sumac plants. Approximately 85% of the population experiences an allergic reaction to these noxious plants, and according to the National Institute of Occupational Health & Safety, 50 micrograms of urushiol is enough to cause a rash in 80-90% of adults.
Sweaty palms, more properly known as palmar hyperhidrosis, is a condition that affects about 1% of the US population. Although the exact cause of sweaty palms is still debated, many experts believe it is caused by a hyperactive sympathetic nervous system, causing the sweat glands in the hands to produce sweat unnecessarily.
It is a common condition often associated with abnormal nervous stimulation of the sweat glands in the skin. The persistent moisture of the palms can cause irritation of the skin along with peeling. Itching may be a symptoms especially when the sweating eases and the skin becomes very dry. Contact Dermatitis. Dermatitis means skin inflammation.