With it getting hotter and hotter each day it is important to be careful not to get a sunburn.
One of the best ways to prevent a sunburn is to put on sunscreen. The SPF or Sun Protection factor on sunscreen bottles represents how well the sunscreen protects a person against a single type of UV radiation. This type of radiation is called UVB and it causes sunburns and skin cancer.
It is recommended to use between SPF 15 and 50. The SPF number determines how much times longer than normal it will take for your skin to turn red. For example SPF 20 would take 20 times longer than normal for your skin to turn red. However the sunscreen can quickly rub off, so the Skin Cancer foundation says that you should reapply sunscreen every two hours no matter what SPF you use.
If you do end up getting a sunburn there are a few things you can do to make it heal and reduce the pain. One way to ease the pain is to take or cool shower or bath. You can also use something like aloe vera or hydrocortisone cream to help with the pain. However make sure not to use something that ends with caine because this can just make the pain worse.
If neither of these things are working to ease the pain you can take aspirin or ibuprofen to help. You can also simply drink more water to prevent dehydration due to the sunburn taking moisture away from the body. If the sunburn was bad enough to give you a second degree burn and you get blisters make sure not to pop them, since they form to help your body heal.
Of course if you have a sunburn you should make sure to protect the area from getting even worse by putting on more sunscreen than other areas or covering up the area with clothing or even a cloth.
Sources: https://www.livescience.com/32666-how-does-sunscreen-work.html https://www.aad.org/public/skin-hair-nails/injured-skin/treating-sunburn