Take a baking soda bath: Adding a few heaping tablespoons of baking soda to cool bath water — not cold water because that can send the body into shock — makes a sunburn-soothing remedy. Just keep your soaking time down to 15 to 20 minutes. If you soak any longer, you risk drying out your already lizard-like skin. When you’ve emerged from the bath, resist the urge to towel off. Instead air-dry, and don’t wipe off the excess baking soda.
Add some aloe vera:
The thick, gel-like juice of the aloe vera plant can take the sting and redness out of a sunburn. Aloe vera causes blood vessels to constrict. Luckily, this healing plant is available at your local nursery or even in the grocery store’s floral department. Apply directly to burned area five to six times per day for several days.
Pat down with potatoes:
The plain old potato makes for a wonderful pain reliever. It’s a time-tested technique known throughout the world. Take two washed potatoes, cut them into small chunks, and place them in a blender or food processor. Blend or process until the potatoes are in liquid form. Add water if they look dry. Pat the burned areas with the pulverized potatoes. Wait until the potatoes dry, then take a cool shower. Another less messy method is to apply the mash to a clean gauze and place on the burn. Change the dressing every hour. Continue applying several times a day for a few days until the pain is relieved.
Apple cider vinegar treatment:
Mix together a large bowl of two parts apple cider vinegar to one part cool water. Take a lukewarm shower and rinse the skin with cool water only — no soap. Pat your body dry with a towel, being careful not to rub the sunburned skin. Soak towels or washcloths in the vinegar mixture, and place the treated towels on the sunburned areas for as long as 15 minutes. When the towels become warm, soak them again and reapply them to the affected area. Repeat treatments in the days following exposure to promote further healing. The treatment works best immediately after sun exposure. Rubbing aloe vera or coconut oil on affected areas after a vinegar treatment can aid in additional pain relief and mask the scent of the vinegar.
— Source: Editors of Consumer Guide. “Home Remedies for Sunburn” 30 June 2011. HowStuffWorks.com.