Severe pain in left foot. Advice.

All of a sudden my mother developed severe pain in the left foot some 20 days ago. She was first given Losan (50), Aten (50), Acenac-P, FM 20 mg (Famotidine), which she took for a week. We then took her to an other doctor who prescribed her Hetrazen-100, Etorica-90, Trypsin-Chymotrypsin Tablets, Famocept 20. She ate those for 3 days. Finally, she was recommended to an orthopaedic and she was suggested to get a X-ray done and was prescribed her these medicines: Amitone-25, Gabapentin Capsules US 300 mg. Right now, she's having only these two medicines. It's been 3 days to that but there has been no significant change in her foot's pain. In fact, it has deteriorated over days. She can barely walk or move around. Also, for the past 3 days, she has develop the same exact pain in her right shoulder. Please, advice.