Information Centre - Living Abroad - Medical Insurance
Britain has well established medical system, overseas students study courses six months or longer can enjoy the National Health Services, NHS.  NHS is a free medical service which have widespread coverage, including emergency room and clinical service.  Students should register at their nearby health care centres with their passports and student cards issued by the schools when they arrive at the UK.  When the registration is finished, a medical card with a registration number will be issued to the students; they have to show this card for every medical service if they wish to enjoy the coverage of NHS.  But when the overseas students just take short courses, extra overseas insurance will be bought for each of them.
Medical insurance
You are strongly advised to take out adequate insurance before travelling to Britain. Your travel agent will be able to suggest a suitable policy.
Bringing medicine into the UK
If you want to bring medicine into the UK, first check that it is licensed for use. Always carry medicines in a correctly labeled container as issued by the pharmacist. Otherwise, bring a letter from your doctor or a personal health record card giving details of the drug prescribed, in case it is queried by customs or you require additional supplies. Remember that some medicines available over-the-counter in other countries may be controlled in Britain, and vice versa.
For further information please contact HM Customs and Excise Advice Centre, Tel: +44 (0)20 8929 0152.
Pharmacies & chemists
In Britain you can obtain prescription, and over-the-counter (non-prescription), medications as well as expert medical advice at pharmacies – often called chemists. We recommend you carry a letter from your doctor stating your prescription and dosage if you are taking any medication. 
Pharmacy opening hours
Pharmacies are usually open from 09:00 to 18:00 Monday to Friday, 09:00 to 13:00 on Saturdays and limited availability on Sundays. However, in larger cities you will find a number of pharmacies open late during the week and on the weekend. For more information and to find a pharmacy near you, visit the National Health Service pharmacy information  (可點擊進去連結網址為http://www.nhs.uk/Pages/HomePage.aspx
Vaccinations & inoculations
You do not require an International Certificate of Vaccination when travelling to the UK, but you should check if one is needed on re-entry into your own country.
Food & water
The level of food hygiene in Britain is very high, so you should simply observe the normal precautions when consuming food products, i.e. ensure it is thoroughly cooked, or that it is within the expiry date. The standard of water cleanliness is also very high, and in general kitchen water supplies, tap water in restaurants and ice cubes are safe drinking water. You can find bottled water in most shops and supermarkets.