A common condition that I see which can be resolved with surgery.
Ingrowing or painful nails have a number of causes; shape of the nail, ill fitting shoes or trauma are some of the reasons that the condition arises.
A brief assessment is performed and anaesthetic is used to extract the problem nail. Post surgery, the toe must be kept clean and a dressing applied daily.
The procedure might also be available through the NHS, ask your Doctor if he will consider referring you.
The following link to a video is really useful.