1. Ayurvedic medications are mostly symptomatic treatment only, i.e. they may relieve the pain but won't treat the underlying cause. And the side effects are unknown.
2. Most probably your knee pain is due to degenerative causes, although we have to rule out Inflammatory arthritis.
Next Steps
Consult nearby Orthopaedician
Health Tips
Avoid squatting, climbing stairs
Can use Ice packs