First Aid: Rashes Rashes can be caused by viruses , bacteria , medicines, heat, allergies, and many other things. Many are only a minor annoyance. But some can be serious and need medical treatment. Signs and Symptoms redness spots on the skin scaly skin itchiness swelling bumps blisters pimples What to Do To ease discomfort: add a few cups of oatmeal to the bath pat the skin dry (instead of rubbing) after a bath or shower don't scrub or scratch the affected skin leave the rash exposed to the air as much as possible Get Medical Care if: your child also has a fever your child looks sick there are tiny red dots that can't be felt when touched and don't fade when pressed there are bruises not related to injuries there is no improvement after a week Think Prevention! Rashes can be hard to avoid. But some types can be prevented: Have kids avoid people with contagious skin rashes. For allergic rashes, try to avoid the substance that causes the reaction. Use sunscreen to avoid sunburn. If your child gets eczema flare-ups, avoid harsh soaps.