I hate sunburns, but they happen. Even careful, responsible people can get them. If you promise to not to let it happen again, I’ll let you know how to manage the aftermath.
The redness and “heat” coming off your skin can be incredibly uncomfortable. Take Tylenol or Advil to relieve some of the inflammation. You can also take tepid baths…hot water will be the last thing on earth you will want. Pat your skin dry; do not rub! Stick a moisturizing lotion (nothing too thick and goopy) in the fridge and then apply it often. Aloe gels or sprays are fine too.
If your burn results in blisters, please resist the temptation to pop them. Do not pick or pull at the skin that is sloughing off gradually. Picking leads to scarring! Continue to moisturize your skin often as it is healing, and keep that fresh new skin out of the sun too. If you have a fever, large fluid filled blisters or continued pain, it’s best to check in with your doctor before trying any other home fixes.