Good evening There's a rash on my daughter's neck in a fold Little pim…

Good evening There's a rash on my daughter's neck in a fold Little pimples I haven't seen anything like it anywhere else on her body, only in that fold I smeared it with nail polish remover It dried up But I don't understand where they came from, she's not allergic, there's no heat in the house, air conditioner. The only thing is she had a fever and took antibiotics.