You may need to get ped foot or something simular to remove it. Try to apply ice if it hurts really bad after some days. See your docter if it doesn't get better or gets worse.
sometimes, these calluses can be warts.
if that is the case, treat them with dr scholl's wart removers.
warts usually have black dots or a cauliflower look to them. calluses don't.
if they are calluses, remove them with a PED EGG (sold in most pharmacy stores).
replace shoes yearly and wear orthotics to offload the forefoot if the lesions are located there.