Vinegar contains acetic acid — one of the components of aspirin. It can help ease sunburn pain, itching, and inflammation. Soak a few sheets of paper towels in white vinegar, and apply them to the burned areas. Leave them on until the towels are dry. Repeat as needed.
Solution: Baking Soda
Sometimes it seems as if baking soda is good for just about anything, and it’s certainly good for relieving heat rash. Soak in a tub to which you’ve added a few tablespoons of the powder. It will ease the itching and make you feel more comfortable while the rash heals. You can also add fine-ground oatmeal, which is sold under brand names such as Aveeno.
Apply baking soda or cornstarch directly to the rash site to absorb moisture and sweat. This is an age-old approach, recommended by many country grandmothers. Some say cornstarch is better because it is softer on the skin. Reapply every few hours, rinsing and drying the skin beforehand.
Solution: Aloe Vera
Keep the blister clean with soap and water. Smear some aloe vera gel on the blister and cover it with a bandage to help it heal. But be sure you use the pure gel of the plant. Some processed products contain ingredients, like alcohol, which have a drying effect.