Understanding and Treating Stress Rash

3. Histamines and Immunes

When a person is stressed out, it triggers an immune response that makes the body release histamine. These hormones are the body's way of fighting off allergens, a process that creates familiar allergy symptoms such as itching, sneezing, and skin inflammation. Stress rash can occur due to too much histamine and is more likely to affect people with autoimmune conditions or allergies. Stress can also harm the immune system, making people more susceptible to allergies and other conditions.