Hi, it is human tendency to ignore symptoms in hope that it will go away but unfortunately, cancer is unforgiving and agressive disease. Time is very crucial and longer you wait, you allow it to spread to lymphnode, bloodstream and other organs without you knowing.

Statically, it has been seen that patients arrive at cancer hospital when the disease has already progressed. And, tt has also been seen that early stages responds well to treatment.

Given the lifestyle and growing incidence of cancer, it may be prudent to suspect cancer if several days or months of treatment does not cure your illness or symptoms.

I am happy that you have not ignored it, even though it may be some form of infection. Since you are in UK, you have an option to get that opinion at one of the world's best cancer care center - Royal Marsden, London or Surrey. Why don't you use your privilege?

All the best and not to worry.