Although sunburn isn't a skin condition in the same sense as the cases highlighted above, it's still an all-too-common occurrence. This time, however, we know exactly what causes sunburn—prolonged sunlight exposure. More specifically, it's UV rays from the sun that burn the skin's outer layer, but that's just the damage we can see. UV rays can also damage DNA, leading to skin cancer.While protection against sunlight is essential for everyone, not all people experience symptoms at the same rate. Your skin type, the sun's intensity, and how long you're exposed all play a part in the severity. Symptoms usually take a few hours to appear, and include:• Patches of red skin• Blisters• Peeling and itchingIt's important to note that the impact of sunburn doesn't purely show itself in the skin. Overexposure can also lead to flu, chills, nausea, and headaches. Again, relief comes in the form of creams, gels, and ointments, but the best cure for sunburn is prevention!