I dont know what it is, I noticed a rash on my neck yesterday. It looks a swollen clump of bumps, its not big or spreading anywhere. Also its only itchy when i start to scratch on it, then it starts yo hurt. But once i stop itching it, doesnt irritate me anymore. I dont know what it could be, i was outside a couple days ago, qnd i was getting bit by mosquitos left and right, but i've developed a rash from it. Please help with insight. Thank you