Why does sunburn cause blisters? Blisters indicate a serious sunburn

The weather is hot in the summer. If we do not take good sun protection measures when going out for fun, it is easy to get sunburned. Sunburn is extremely harmful to human health. If blisters appear on a person's body, it means that the degree of sunburn is very serious. So, why does sunburn cause blisters?

Why does sunburn cause blisters?

Severe sunburn can cause blisters, which are called light rash, a photoallergic reaction. Symptoms usually appear within 2 hours to 5 days after sun exposure. Generally speaking, mild sunburn causes redness, swelling and pain on the skin, but if blistering occurs, it means the sunburn is very serious.

How to deal with sunburn blisters

If blistering occurs, it means the sunburn is very serious. Don't delay, it's best to go to the hospital for examination and treatment immediately. It is not recommended to handle it on your own. Using skin care products or cosmetics at this time may cause further damage to the skin. Also, avoid rubbing the skin, otherwise it will cause the blisters to burst. If you are traveling and there is no medical access, use a soft sterile cotton swab dipped in ice water to gently pat the skin, trying not to break the blisters, but allow the blisters to be absorbed and dissolved by the body.

Sunburn blisters are considered second degree sunburn

Sunburn is divided into first degree sunburn and second degree sunburn. Degree I sunburn only damages the surface of the skin, while degree II sunburn damages the subcutaneous tissue, namely the dermis. Severe cases require timely medical attention. Second-degree sunburn damages the dermis of the skin. The sunburned area will swell and even develop blisters or bullae. The blister walls are tense and the contents are light yellow serous. After the blisters rupture, erosions and scabs will form, causing burning or itching. The condition will recover after one week, leaving behind pigmentation. In severe cases, it may be accompanied by systemic symptoms such as palpitations, nausea, and vomiting.

How to prevent sunburn

Regularly participate in outdoor sports to increase your skin's tolerance to sun exposure. Avoid outdoor activities between 10:00 a.m. and 2:00 p.m. when the sunlight is strong. People with sensitive skin should avoid direct exposure to the sun. When going out, you should pay attention to protection, hold an umbrella, wear a wide-brimmed hat, wear long-sleeved clothes, apply sunscreen, etc.