if I accidently eat onions, I take an extra claritin and I take gas x and some ibuprophen. This helps my body not itch or bloat until I can get it out of my system. The aspirin helps my privates from itching. I dont know why but it works. Also my face and eyes wont be as swollen the next morning. If I eat raw onion, I will turn blue and have to use an epipen. I try to avoid onion at all costs. The smell of somebody cutting them can make me funny.