Itchy skin in hot water bath is considered to be caused by dry skin, artificial urticaria, eczema and other factors.
1. Dry skin: If you often use a scrubby towel to scrub when you take a bath in normal times, or often use alkaline shower gel, it will destroy the oil barrier on the surface of the skin, thus triggering dry skin, so that when you take a hot bath, it will stimulate the skin to trigger the symptoms of itchiness.
2. Cholinergic urticaria: If the patient in a hot bath, the local skin suddenly contact with hot water, will stimulate the skin mast cells to release vasoactive mediators, so that the local vasodilatation, thus causing itchy skin symptoms.
3. Eczema: If the patient belongs to the allergic body, due to the high temperature of the water or the presence of bacteria in the water, in contact with the skin, will stimulate the local skin, so that the vascular permeability increased, which will trigger eczema, leading to the patient to appear in the hot bath itchy skin symptoms.
There are many reasons for itchy skin in a hot bath, you need to go to the hospital in time for examination, and give targeted treatment.