Many parents have found that switching from oils to moisturizing creams can significantly help soothe heat rashes. Some parents reported that heavy oils, such as coconut or olive oil, can exacerbate skin irritation in folds, so avoiding oils and lotions for a few days may allow the skin to breathe. When choosing a moisturizer, look for gentle, cooling options, and try massaging it onto the skin before bath time rather than after to avoid trapping heat.