6 weeks ago my lips starting feeling burnt and swollen. Then 2 weeks after that a hive appeared over my eye and then it scaled over and makes the eyelid swollen. Now I started getting a rash all over my body. It's a red prickly feeling like I'm sunburnt. On my face, neck, chest, back and torso and wrists and hands. I am supposed to get Patch test tomorrow but can't imagine they will do that while I'm having an active reaction. Anyone done this test while having a reaction? Also how do doctors know if the rash is from topical things, medications, environmental or food? Thank you!