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Foot pain may be caused by many different diseases, biomechanical conditions, or injuries.
it may occur due to neuropathies,decreased blood circulation to peripheral parts of the body mainly lower limbs
GOUT===This condition occurs when uric acid accumulates in your body. Deposits of uric acid collect in the joints — particularly in your big toes — and can cause intense, episodic pain.
HIFENAC-MR tablet contains aceclofenac
this is a muscle relaxant
and helps in pain relief,but prolonged usage is not encouraged in your case
being diabetic,you need to see a doctor and then take any kind of medication only upon his advice
get your blood glucose levels checked
see if there is any underlying infection
gaining weight may exert pressure on your feet leading to pain and some minute fractures may also occur along the weight bearing axis
talk to a doctor to come to a correct diagnosis and then start the treatment
by using pain killers you can get temporary pain relief ,but the problem worsens
take care,do not neglect
hope i answered your query
feel free to contact me for further queries