My nephew has a bad rash and he has like mosquito bites all over him what is the best thing to use for both of them!!??
Are you sure that it is Mosquito bites? If you aren't sure and if you don't know what the rash is, you might want to take him to the Dr or go to the drug store and ask the Pharmacist.
That's some of the symptoms for chicken pox. Take him to a doctor to find out for sure. It could also just be a heat rash but it's better to be safe then sorry