What's the best cure for infant's scars due to insect bites (ant, mosquitoes)?

Prevention. Prevention is key as once the inflammation occurs and or scars they will remain there for a long time. Have your baby wear long pants and shirt whenever mosquito exposure is a possibility. If older than 6 months spray deet containing product in clothing and bare skin (that u can not otherwise cover). Use Hydrocortisone 1% if bitten to decrease inflammation and itch. If red/infected use antibx crem.