My daughter is 4 years old and has two large bug bites. One is one her left forearm. It is red and very swollen, hot and hard to the touch. She has another one on her left leg. It's also red, swollen, hot, and hard to the touch. What can I do for my daughter so it doesn't hurt and won't itch? I don't want to have to take her to the doctors office just to get cream when I can treat it at home.