Hi Welcome to HCM! I appreciate your concern towards the corns on the feet. It seems the prescribed medications like corn caps, salicylic acid are not effective in your case. The pain in the upper foot could be due to infection caused by the bacteria. You need to take suitable antibiotics to control the infection so that the corn gets removed by the above medications. If there is no success following the use of above medications, then you may have to consult a dermatologist for possible removal by Cauterization, or surgical removal under local anesthesia. These corns are known to recur, so that can be prevented by: Keep your feet dry and friction-free. Avoid using pointed shoes, maintain good hygiene, wash your feet regularly Wear properly fitted shoes and cotton socks, rather than wool or synthetic fibres that might irritate the skin. I hope your doubts have been clarified. Take care of your health. Reply with thanks