Exercise is the key of fitness and proper routine of taking exercise at home or anywhere else keep you fit and active.Countless benefits we can enjoy through proper exercises.
I think you should consult your doctor, the medicine or suggestion told by others having little knowledge may prove dangerous as nobody knows the exact reason of knee pain.It's my sincere advice.
Proper exercise and selection of right food is necessary to maintain weight within the normal limits.If you are already overweight you will have to change your life style.