Sunburn

About

Sunburn is a painful skin condition caused by overexposure to the sun’s ultraviolet radiation. Sunburn can range from a mild redness to peeling, blistering and even scarring. In extreme cases, sunburn can lead to more serious illnesses like heat stroke and skin cancer. It is important to protect yourself from sunburn by wearing sunscreen, protective clothing, sunglasses, and a hat when spending time outdoors. Also, it is important to stay in the shade whenever possible to minimize sun exposure.

Symptoms

Sunburn is a type of skin irritation caused by too much exposure to ultraviolet (UV) radiation from the sun. Symptoms of sunburn include:

  • Red, painful, or tender skin
  • Blistering or peeling skin
  • Swelling
  • Headache
  • Fever
  • Nausea
  • Fatigue

Causes

Sunburns are caused by overexposure to ultraviolet (UV) radiation from the sun. This UV radiation can damage the outer layers of the skin, resulting in inflammation and a burning sensation. Other factors that can increase the risk of sunburn include time of day (the sun’s rays are strongest between 10am and 4pm), geographic location (the farther one is away from the equator, the stronger the sun’s rays become), skin type (people with fair skin are more prone to sunburn), and amount of skin exposed (longer exposure to sun leads to a higher risk of sunburn).

Risk factors

Sunburn is caused by exposure to ultraviolet (UV) radiation from the sun. Risk factors for sunburn include:

  • Spending time outdoors in direct sunlight, particularly between the hours of 10 am and 4 pm when UV radiation is most intense.
  • Having fair skin, which contains less melanin, the natural pigment that provides some protection against UV radiation.
  • Not using adequate sun protection, such as protective clothing, sunscreen and sunglasses.
  • Reflection of UV radiation from sand, water, snow, and pavement.
  • Tanning devices, such as indoor tanning beds or booths, which can cause more severe sunburn than natural sunlight.
  • Strength of the sun’s rays, which is affected by elevation, season, and latitude.

Diagnosis

Diagnosis of sunburn is typically based on the physical examination of the affected area. Doctors may ask questions about recent sun exposure to help make an accurate diagnosis. The affected skin may appear red, dry, and tender, and may begin to blister or peel. In some cases, the affected area may even take on a purplish hue. In more severe cases, blisters may form and additional symptoms such as nausea, headache, fever, and chills may be present and should be reported to a doctor immediately.

Sub-types

There are four primary subtypes of sunburn, each with different characteristics and potential risks. They include:

  1. Acute Sunburn: This type of sunburn is the most common and is characterized by red or pink skin and a sensation of pain or tenderness. Acute sunburn is often reversible and can generally heal with appropriate treatment.
  2. Chronic Sunburn: This type of sunburn is more severe and is characterized by long-term damage to the skin. It may result in premature aging, wrinkling, and increased risk of skin cancer.
  3. Phototoxic Sunburn: This type of sunburn occurs when the skin is exposed to certain chemical compounds that interact with the sun’s ultraviolet (UV) rays. It is characterized by reddening of the skin, which may be accompanied by burning and itching.
  4. Severe Sunburn: Severe sunburn occurs when the skin receives very intense exposure to the sun and is characterized by blistering or peeling of the skin. It can lead to permanent scarring and an increased risk of skin cancer.

Treatments

The treatment options for sunburns include:

  1. Taking cool baths or showers to soothe sunburned skin.
  2. Applying aloe vera gel to the affected area.
  3. Applying cool compresses to the affected area.
  4. Drinking plenty of fluids.
  5. Taking over-the-counter pain medications, such as ibuprofen or acetaminophen, to relieve pain and inflammation.
  6. Applying a moisturizer to soothe and prepare the skin to heal.
  7. Avoiding any further sun exposure while the skin is still healing.
  8. Taking antioxidant supplements to reduce inflammation caused by sunburn.
  9. Applying hydrocortisone cream to the affected area to reduce swelling, itching, and pain.

Prevention

To reduce the risk of sunburn, it is important to limit your exposure to direct sunlight, especially during the peak hours of 10am to 4pm. When you are outdoors, wear protective clothing such as wide-brimmed hats, long-sleeved shirts, and protective sunglasses. Additionally, apply sunscreen with an SPF of 30 or higher, and reapply every two hours, or after swimming or sweating. Finally, stay in the shade as much as possible, and avoid sun tanning beds and sunlamps.

Gender differences?

Yes, there are gender-specific differences in the presentation and management of sunburn. Men tend to experience sunburn more severely because of the increased amount of melanin in their skin, which results in more intense and painful sunburns. Women typically experience milder sunburns because of the additional protection their melanin provides.

The management of sunburn also differs between genders. Women tend to take a more preventative approach when it comes to sunburn, often wearing sunblock and protective clothing to avoid sunburn in the first place. Men, on the other hand, are more likely to ignore the warning signs of sunburn and only take action after the sunburn has already occurred. Therefore, men are more likely to use over-the-counter medications and topical treatments to reduce the severity of their sunburn.

Nutrition

Nutrition plays a key role in the management of sunburn because the vitamins, minerals and antioxidants found in certain foods can help the body repair skin cells and promote healing. Eating foods high in vitamins A, C, D and E, beta-carotene, omega-3 fatty acids, zinc, and other antioxidants can help reduce inflammation and promote healing. Drinking plenty of water supports the body’s natural functions and helps to hydrate the skin. Additionally, avoiding processed foods and refined carbohydrates can help reduce inflammation, enabling the skin to repair itself more quickly.

Physical Activity

Physical activity can affect sunburn by increasing the amount of time a person is exposed to the sun’s ultraviolet (UV) rays. The more active a person is, the more likely they are to be out in the sun for long periods of time, thus increasing the chances of suffering from sunburn. In order to reduce the chance of getting sunburn, it is important to wear protective clothing and use sunscreen with a high SPF rating when engaging in physical activity, especially during peak hours of the day. Additionally, avoiding or limiting time spent in the sun during these peak hours is recommended.

Further Reading

  1. https://www.uptodate.com/contents/sunburn-beyond-the-basics
  2. https://bestpractice.bmj.com/topics/en-gb/613/references
  3. https://www.ncbi.nlm.nih.gov/books/NBK534837/
  4. https://www.mayoclinic.org/diseases-conditions/sunburn/symptoms-causes/syc-20355922
  5. https://raisingchildren.net.au/guides/a-z-health-reference/sunburn
  6. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/sunburn

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