question: Hello, i am going for an operation on 4th sept 2012 as i have pre cancel cells that need removing and treating. I started with a light chesty cough on thursday but im hardly coughing at all and just feel it in my chest. Also i have hot sweats too. Ive been taking day and night nurse from the chemist and seems to be helping. Would i still be ok To go ahead with my operation or do i need to ring the doctor and ask or cancel?