When the skin is overexposed to the ultraviolet rays of the sun a sunburn can occur. The symptoms of a sunburn can take up to 24 hours to appear. The skin can be red, warm, tender, blistered, and swollen.
Review Date 4/16/2019
Updated by: Michael Lehrer, MD, Clinical Associate Professor, Department of Dermatology, University of Pennsylvania Medical Center, Philadelphia, PA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.