If your child has been bitten by a bug and the rashes are not going away, then it is a serious matter because it could be papular urticaria. You can easily identify it by crops of small papules on the affected area of the skin. Though adults can also be affected,  kids are the most common victim of this skin problem.

Before opting for any kind of papular urticaria treatment, you need to take certain precautionary measures for instance

1: Avoid touching the affected area

2: Use insect repellents and flea and tick control

For a detailed guide about papular urticaria treatment read my complete article.