Suggest Treatment For Knee Pain

My mother found to have gap in her knees and bending shape in both the legs. She couldnt even walk for 10 minutes continuously.Earlier we were consulting our physician and he said that there is no need for surgery as it is a last resort so for the time being atleast 2 years try to reduce your weight but my mother was still feeling pain so we opted for ayurvedic treatment. Will this treatment will be fruitful as compared to the previous one? Please guide me that what to do now and how severe the situation is?