What can I do?
Use of wide toe box shoes could help. You also could use insoles (forefoot arch support)available at your local pharmacist.
I have done all these, but still it is painful
Mr Janipireddy shall examine you and take a detailed history. He could organise further investigations, such as X-ray of your foot (to rule out other causes) and an ultrasound (to diagnose Mortons neuroma).
Depending on the size and severity, you could be advised to have an injection to the site under ultrasound guidance. The injection is done by a radiologist and a local anaesthetic and cortisone injection is given.