Stay out of the sun

Sun avoidance is a universal advice if you want to reduce your risk of skin cancer.

Using a sunblock of SPF 15 and above helps to minimise sun exposure. Sunblock should be applied on 30 minutes before going into the sun. You should use it liberally and rub it in well. Apply the sunblock everywhere the sunrays may touch you, even over the ears and back of the neck.

Not all sunblocks are the same. Make sure you choose the appropriate one for the type of activity you are going to engage in.

For example, if you intend to swim, you should use a water-resistant or water-proof sunblock. If you sweat a lot, you should use a sweat-resistant or sweat-proof sunblock. If you swim or sweat for long hours, you should reapply the sunblock frequently (such as hourly). Of course, it would be wise to avoid the sun during the 'peak' hours between 10am - 4pm!

This article is contributed by National University Hospital, Singapore.