If you need medical treatment, you can contact your local GP by calling them or using AskMyGP which you can access for your GPs website. If you do not have a GP at the moment, please contact NHS 111.
Give your symptoms and they will be able to discuss what steps you should take, including arranging an appointment. While they remain open, please do not turn up at the GP surgery without an appointment as they are trying to protect everyone by ensuring there is only a small number of patients at any one time.
If it is an emergency call 999.