Infection can significantly delay healing and increase the likelihood of scarring. There are three levels of injury: ...

First-degree sunburn damages ... These symptoms include: Second-degree sunburn may take several weeks to heal. Treatment may require specialist burn cream and burn dressings.

Blisters from the sun usually heal naturally in about one week but may leave scars. A second degree ... this is likely a first degree burn. Sunburn blisters can be very painful and take around ...