Okay so pink blotches blotches on my collarbone and stomach started appearing about 2-3 days ago. It just started as an itch and thought it was just a mosquito bite. I get those a lot. But then, when I looked at it during the night, the area started to get bigger and it was present just below my collarbone too. I think it got worse because of the chicken noodles I ate on the first day, but I noticed the itch appear before that. I don't know what to do at all nor what it is. The t shirts I wear mostly cover it up but the itch is super uncomfortable. And I get goosebumps from time to time because of its itch. I void scratching it since it might get worse. I've had something similar in the past. Just red blotches appearing on skin and when I scratch it too much, it spreads and turns into a large welt. I don't really know how to describe it. Do you guys know what to do about this or what it is? Will taking antihistamine help? We have a lot of those since our family is prone to allergies...