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.
What Causes Peeling Palms. 1  The peeling of palms is associated with several symptoms including dryness, redness, rashes, burning sensation, pain, and itchiness. There are many reasons why the palmar skin peels off, and a few of these are disorders such as: 2  Exfoliative keratolysis. Also called focal palm peeling, the exfoliative keratolysis is a condition of severe peeling of palmar skin, preceded by an outburst of air-filled blisters throughout the palms and fingers. The blisters, which may be caused by eczema, also cause the palm to peel off. Hand dermatitis.