Thank you for posting your query.
This could be related to an infection. If you can upload a picture, it would be helpful. In that case, a course of antibiotics would be required.
He can take diclofenac
tablets for pain relief.
Please get back if you require any additional information.
Dr Sudhir Kumar MD (Internal Medicine), DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad,
My personal URL on this website: http://bit.ly/Dr-Sudhir-kumar
My email: email@example.com
My blog: http://bestneurodoctor.blogspot.com/