I have heard that there is an allergy to synthetics, but this is the first time I hear about cotton. There are allergies to pet hair or flowering plants, dust or various chemicals. So it's strange for me to hear that cotton causes allergies, because I know it's hypoallergenic. And if we talk about me, I'm only allergic to certain types of food. I had unpleasant symptoms in the form of a rash and redness throughout my body, and I decided to find out the cause of this. Then I took a test for food intolerance and other allergens in this lab (removed) and found out that I was allergic to citrus. I was very surprised because I thought a glass of freshly squeezed orange juice in the morning would improve my immune system. And I didn't know that oranges could cause such an allergic reaction. But I had to exclude them from my diet.. I hope that the course of treatment will help me get rid of this allergy, because I like oranges.