If you would like to know more about sunburn symptoms and diagnosis, and about sunburn treatments, read the following article for more information.
This page gives tips on how to protect your skin from the harmful effects of sunlight. In particular, children should be protected from the sun. Children's skin is more sensitive to sun damage which can lead to skin cancer in later life.
Understanding sunlight
Too much sunlight is harmful and can damage the skin. There are two main types of damaging ultraviolet (UV) sunlight, UVA and UVB. UVA has an effect of ageing the skin and causing wrinkles and other damage to deeper layers of skin. UVB causes sun tanning but also burning. It can also cause other damage to the skin.
Who is at risk from the sun?
All people are at risk if exposed to too much sun. People most at risk are those with fair skin, freckles, red or ginger hair. It is not just people who sunbathe who are at risk. Outdoor workers and people simply being outdoors who do not protect their skin are also at risk.
What are the possible problems from the sun?
Sunburn and sunstroke
Short term overexposure to sun can cause burning. The skin becomes red, hot and painful. After a few days the burnt skin may peel. A cool shower or bath will help. Soothing creams such as calamine lotion will help. Paracetamol will help with pain. A mild steroid cream may be advised by a pharmacist or doctor to reduce inflammation in the skin.
If vomiting, fever and headaches occur this may be due to sunstroke. If this occurs make sure you have plenty to drink to prevent dehydration. Paracetamol or ibuprofen will help to ease headaches and fever. Consult your doctor if it does not quickly settle.
Skin damage
Repeated exposure to too much sun over a number of years can cause damage to skin. The effects of sun damage include: premature skin aging and wrinkling, brown spots, actinic keratoses (benign warty growths on the skin), and skin cancer.
Skin cancer
About 9 in 10 non-melanoma skin cancers, and about 6 in 10 melanoma skin cancers (the most serious form of skin cancer) are thought to be caused by excessive exposure to the sun. In particular, episodes of sunburn greatly increase the risk. Skin cells that are damaged are at greater risk of becoming abnormal and cancerous.
All people of all ages should protect their skin, but it it is even more vital to protect children. Although skin cancer is rare in children, the amount of sun exposure during childhood is thought to increase the risk of developing skin cancer in adult life. Therefore, take extra care with children, and keep babies out of the sun completely.
How can I protect skin from the sun?
Avoid the sun as much as possible when the sun is strong
In the UK, stay in the shade or indoors as much as possible between 11 am and 3 pm in the summer months (May to September). This applies all year round in hotter countries nearer to the equator. This middle time of the day is when the sun's ray's are the strongest. Trees, umbrellas, canopies, etc, provide good shade.
Cover up
Cover up the body as much as possible when you are out in the sunshine.
- Wear wide brimmed hats with a brim that goes all around the hat to protect the face and neck. These are the areas most commonly affected by sun damage. Baseball caps are not so good as they shade the face but not the neck, lower face and ears. Young children should wear hats with neck protectors too.
- Wear loose baggy T-shirts (or even better - long sleeve tops) and baggy shorts. The material should be tightly woven which blocks sunlight.
- Wear wrap around sunglasses (your eyes can get sun damage too). Make sure the sunglasses are ones which protect against UV light.
Use factor 15+ sunscreen (sunblock) liberally
You should apply sunscreen with an SPF (Sun Protection Factor) of at least 15. Be sure to cover areas which are sometimes missed such as the lips, ears, around eyes, neck, scalp if hair is thinning, hands, and feet. You should not think of sunscreen as an alternative to avoiding the sun or covering up. It is used in addition. No sunscreen is 100% effective and so it provides less protection than clothes or shade. Ideally:
You should apply sunscreen with an SPF (Sun Protection Factor) of at least 15. Be sure to cover areas which are sometimes missed such as the lips, ears, around eyes, neck, scalp if hair is thinning, hands, and feet. You should not think of sunscreen as an alternative to avoiding the sun or covering up. It is used in addition. No sunscreen is 100% effective and so it provides less protection than clothes or shade. Ideally:
- Apply 20-30 minutes before going out into the sun (it takes a short time to work).
- Re-apply frequently, at least every two hours, and always after swimming or towelling (even those that say they are waterproof).
- Reapply to children even more often.
- Use a 'broad spectrum' sunscreen to protect against UVA and UVB.
Some things that you might not realise
- Sunscreens less than factor 15 do not give much protection. Always use factor 15 or above.
- Sunscreens can 'go-off' and not work after a time. Therefore, do not use out of date sunscreen (see the 'use by' date on the packet). Most have a shelf-life of 2-3 years.
- Some experts think that the increased use of sunscreen lotions and creams may give a false sense of security. This may encourage people to go into the sun more, and as a result, cause an increase in your risk of developing skin cancers. It has to be emphasized that sunscreen only partially protects your skin. Using sunscreen does not mean that you can sunbathe for long periods without harm. If you tan - you have done some damage to your skin.
- Reflected light can damage too. On sunny days, even if you are in the shade, sun can reflect onto your skin. Sand, water, concrete, and snow are good reflectors of sunlight.
- Wet clothes let through more UV light than dry clothes. Take spare clothes with you if you expect to get wet.
- Clouds may give a false sense of security. Most of the UV radiation from sunshine still comes through thin cloud. Thick cloud provides some protection, but you still need protection when there is thin cloud.
- Many clothes worn in hot weather (thin T-shirts etc) actually allow a lot of sunlight through. You need to wear tightly-woven clothes to protect from the suns rays. If you can see light through a fabric, damaging UV rays can get through too.
- The suns rays are more powerful at higher altitudes. It may be cooler up a mountain but you will need more skin protection.
- Fair-skinned people who sunburn easily are at particularly high risk of developing skin cancer and should be most careful about protecting their skin.
- There is no such thing as a healthy tan. A tan is the skin's response to the sun's damaging rays.
- Artificial tanning from sun-ray lamps and 'tanning parlours' are probably just as damaging as sunshine - so avoid them.
- It's not the heat that does the damage but the UV radiation in sunlight which is present all year. You can get a lot of exposure to UV doing winter sports such as skiing as it is often done in sunny weather and at high altitudes. In particular, when out in ice and snow which reflects a lot of sunlight, wear a hat, sunscreen, lip balm, and sunglasses.
The UV index
The met office provide information called the 'Solar UV index' with their weather forecasts. The index is given as a figure in a triangle over the maps they use when giving forecasts. Basically, the higher the index (from 1 to 10), the greater the risk from the sun, the more care you should take of your skin when outside. See their website (given below) for details.
Further help and information
SunSmart - www.cancerresearchuk.org/sunsmart/
The UK's national skin cancer prevention campaign. Run by Cancer Research UK.
The UK's national skin cancer prevention campaign. Run by Cancer Research UK.
Solar UV index forecast - www.met-office.gov.uk/weather/uv/
From the met office
From the met office
©EMIS and PIP 2006
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