Causes
Contact with any form of water can cause symptoms to appear. One's own or someone else’s sweat can cause a reaction, so most affected people try to stay cool in summer to avoid sweating as much as possible. Tears on one's face from crying can also cause pain. Most people with aquagenic urticaria try to stay out of the rain and carry umbrellas as a precautionary measure. Cleansing the body often induces such an intense reaction that affected people may take very short showers to lessen the severity of the pain.
Read more about this topic: Aquagenic Urticaria