When DH and I went to Mississippi for our honeymoon we got 2nd degree sunburn and went to the ER. They told us to go to the store and buy lot's of vinegar......you can add it to bath water and soak in it and use it directly on your body to take the sting out of the burn......
It STINKS but trust me, it WORKS! ( nice to know with summer on the way)

wish i had a sunburn to try it on

Yes it does work and if you dont have vinegar pickle juice works to