So you've been out in the sun and you wore sunscreen, but unfortunately you forgot to reapply. You ended up with a nasty burn on your face and as you take a closer look, parts of your cheek appear kind of blistery and yellowish in color. What you've got is a case of sun poisoning (also called Photodermatitis, for those who want to impress their friends). Not only does it cause this painful rash, but symptoms also include fever, nausea, vomiting, fatigue, dizziness, chills, and headaches. The area may swell and will probably feel like it's on fire.
Sun poisoning is your skin's reaction to UV rays. It's possible to become more sensitive than normal if you use certain meds such as antibiotics, beauty products that are used for acne, or sunscreens that contain PABA. Just like an irritating sunburn, the rash usually results in itchy, peeling skin, but eventually goes away on its own within 10 days. That's good to hear, but there's bad news too. To hear it read more
The more extreme exposure your skin gets to UV rays, the bigger your risk for skin cancer. So you want to prevent sunburns and sun poisoning at all costs. Make sure to avoid long hours of sunlight, especially during 10 am and 3 pm. Of course, slather yourself with broad spectrum sunscreen that has an SPF of 15 or higher. It must be applied 30 minutes before you head out in the sun, and must be reapplied every two hours.