A study has shown that, by the time you need to get treatment, you may already have had sunburns that are too severe for treatment.
The research found that some people were only given a few treatments, while others had had more than 10 treatments and many others had more.
This means that some of the people who had suffered sunburn may have had them for longer than they should have.
The study, published in the journal Lancet, analysed data from a population-based sample of the general population in Germany between 1995 and 2005.
The data showed that more than 70 per cent of people had sunburnt at least once in the last 12 months.
Most people, however, had had at least one sunburn over a 10-year period, although the study found that people with a history of sunburn or chronic sunburn had a slightly higher risk of having more than one.
Dr Thomas Wüster, from the Department of Health and Nutrition at the Karolinska Institute, said the study showed that people should be advised to avoid sun exposure in general, rather than the sunburn they may be experiencing.
He said that some doctors may not know about the sun’s harmful effects.
Dr Wüstinger said: “If we can help people who are in need of treatment, then we can improve the overall health of the population.”
If we really want to reduce our health problems, then people should really avoid sun.
“The best thing is not to get sunburn.”
Professor Stefan Knecht, from University of Oxford’s School of Public Health, said that the sun could have a role to play in preventing the development of certain cancers.
He added that sunburn could be treated with vitamin D, which helps reduce the amount of DNA damage caused by UV rays.
Professor Kneacht said that it was possible to treat the sun burn with a topical steroid such as ibuprofen.
Dr Kneicht said: ”If you take a steroid, it works very well, it is very safe, and it is not toxic.”
The study also found that sun exposure was associated with a reduced risk of some cancers.
Dr Martin König, a member of the European Research Council’s Institute of Public Policy and Preventive Medicine, said: ‘Sunburn is an important contributor to cancer.’
But he added that the findings did not prove that sunbursts were linked to cancer, as the findings showed a link with the type of sun that people were exposed to, not whether or not they had sun burns.
”We need to understand how sun exposure affects the body in order to develop a more accurate risk profile for the prevention of cancer and other diseases,” he said.
Professor Jürgen Wegener, from Karolink, University of Munich, said sunburn was a serious problem that was not yet understood.
He noted that sun damage was a marker for a person’s age.
He pointed out that sunspot activity, the number of days in which the sunspot cycle is active, could also be linked to sunburn, and he said it was important to know whether someone had a sunspot.
Dr Wegener said that sunscreens could be useful in treating sunburn.
”I think they can make people feel a little bit better.”
However, Dr Königs said that people had a choice to make about whether to use sunscreen, and that if you had a strong preference for a sunscreen, it was a good idea to get it.
Dr Sverker, from Cancer Research UK, said he hoped that more research would be carried out on the effects of sun exposure on cancer.
He also suggested that people could help prevent sunburn by keeping their eyes and face covered and avoiding sun-exposed areas.
Professor Wegener added: ”I hope that people will do this for themselves.”
Sunburns are an important part of life and a major cause of skin cancer, but we need to be better prepared for them, as they are one of the leading causes of cancer deaths in the world.”
If we want to stop these cancers, then everyone needs to protect themselves from the sun and avoid sunburn.”