Why does skin peel after a sun burn?

Repair. Sunburn is an injury and a new layer replaces the damaged layer. It is the damaged layer tha is peeling off.Allow itvto peel naturally. Do not peel it off prematurely.
Dead skin. The top layer of skin has been so badly damaged by the radiation exposure from the sun that it's integrity is compromised. This is VERY bad for your skin and increases your chance of skin cancer. Check out this excellent website: https://www.dermnetnz.org/topics/sunburn/
radiation injury. A sunburn is due to radiation from the sun causing damage to the superficial layers of the skin. Too much radiation can damage the underlying layers which then push the superficial most layer (epidermis) away from the nutrition below it. This superficial epidermal layer then dies and peels away. Never pull these peeling layers as they are attached deeper and you will injure the deep laye.

Related Questions

Got a sunburn on vaca. There is a dark burn like mark on my shoulder now. Peeling and discolored skin underneath. Not sure how to treat.?

Sunburn. Do you like your skin nice and crispy, or the type that just melts in your mouth? You charred your shoulder recently and while we think that might be just be just fine for a steer that we intend to consume we do not think it's fine for humans. I assume you don't engage in cannabalism. Use plenty of hi SPF sunscreen oil-base. For the burn, sulfadiazine. Read more...

Bad sunburn on back+stomach 10days ago. Done peeling now have brown freckle like spots on back of shoulders where burn was worst. Is this skin cancer?

Sun protection. Sun exposure can cause skin cancer, but this happens over many years of exposure. It is important to have good sun protection at all times. However, for severe sunburns, it does take time to heal from the exposure. Please see your doctor if these spots do not clear up in 2weeks as he or she may have some recommendations for helping your skin heal. Read more...
Not acutely. Severe sun burns over a prolonged period will increase your risk is skin cancer but are not likely to do this from one acute episode especially within the first few days after the burn. However this should not be interpreted to proceed without caution. Tan responsibly using appropriate precautions to minimize burns or excessive exposure, . Read more...
Probably not Skin Ca. You can develop hyperpigmentation ( dark spots) after sun burns. Best to protect you skin with a quality sun block to prevent this from happening. However, any spot should be checked out by a qualified doctor used to dealing with skin cancers either a dermatologist or experienced primary care doctor. Read more...
Normal response. As injured skin heals, the body creates inflammation to do so which means fresh blood goes to the area and with it, many kinds of healing factors and cells. One type is called melanocytes which carry our skin pigment melanin. A healing occurs, these cells get deposited in the area and give it the brownish coloration you see. Over time, there will be some fading as the injury matures. Read more...

How long after a sun burn for it to peel? Can some medication prevent the peeling?

Aloe Vera. Aloe vera will sooth the burn, you can also take an anti-inflammatory. The skin will likely peel as it was already damaged. Prevention is the key, burns are unhealthy and could lead to skin cancer. Read more...

I have white itchy patches on my abdomon back and chest! Its flaking and peeling like after a sun burn but very itchy! What is it?

Contact Dermatitis. Contact dermatitis is a condition in which the skin becomes red, sore, or inflamed after direct contact with a substance. There are two kinds of contact dermatitis: irritant or allergic. Read more...

I got really bad sun burn last summer and I think my face is still peeling?

Sun burn. It is not likely that your peeling face is directly related to the sun burn of last summer. However it is not normal to have a peeling face and you should see a dermatologist to have the cause evaluated and to have proper therapy prescribed. Read more...

I got a sun burn under my eyes and it swelled and then went down and started to peel and now my dark circles are more noticeable. Is this permanent?

Should not be. This is a reaction to the burn and in a few months your skin should return to normal coloration. Make sure you are keeping the area moist with hypoallergenic moisturizers. Read more...
SUNBURN EYELIDS. THE DARK CIRCLES ARE NOT, NOT, NOT PERMANENT. BE CAREFUL THE NEXT TIME YOU ARE IN THE SUN! Read more...