Warm saline fomentation Light message with mustard oil The problem is usually self limiting

Consult on practo

Medicines help plantar fasciitis to an extent Medical silicone sole will help Ask him to follow a home remedy i.e. keep his affected foot in warm water with salt for 10 minutes twice daily. You could try sole muscles stretching exercise plus roll his foot over bottle. Physiotherapy has good role in plantar fasciitis treatment - ultrasonics first and shockwave therapy later Local injection of corticosteroids is tried if physiotherapy doesn't help

Medicine alone will not help him. He should take shoes with a Doctor Sole. These should be worn whenever he wants to walk. Not a permanent cure but it alleviates pain

Can help you, kindly provide me detailed history for proper diagnosis and further management

Exercise of foot like Rolling foot over a tennis ball etc. Can watch a few YouTube videos for help. Exercise for plantar fasciitis. Inspite of that if pain pain persisting, consult doctor to  get X ray ankle done to look for calcaneal spur.  If spur is significant may require surgical removal for relief.