I have autoimmune urticaria. My ASST test results were positive. I am allergic to sunlight. Only my face gets allergy even though all my body exposed to sun, my body gets tanned, and only my face gets allergy. Even five minutes exposure to sun light brings allergy to my face. I am suffering from allergy since five years. I have severe constipation since 3 years. I didn't digest my food well. I think I have leaky gut syndrome. Is there any connection between my allergy and leaky gut. Even antihistamines didn't work better. Please suggest me how to treat this?