Start by giving your kids an antihistamine, such as Benadryl. If the itchiness and redness is particularly nasty looking, try placing an ice pack on the area. "Applying ice or a cold compress can help too, because sometimes the bites get really red and hot and angry-looking," said Dr. Parikh.
But the best way to protect children who are prone to this illness? Keep it from happening in the first place.
"If you know you're predisposed to this, it's important to carry bug spray with you or wear clothing that covers your skin when you know you're going to be in a mosquito-infested area," explained Dr. Parikh.