Hi , I have skin allergy problem . Some time I can see itchy red patches through out my body , I may need to take some antihistamine tablets for couple of days , then it goes off and it comes back again after some day. Contacted many doctors but not much of help. Almost everybody says it can be a food allergy , cloth allergy etc.. but nobody could able to find a root cause. Did a complete blood test through Apolo , which came normal as well. During this allregy period , I feel very drowsy and mild feversih as well. Kindly advice how can this be taken care. This is happening almost for 10+ years ..