Suggest Treatment For Random Sprains All Over The Body

Hello sir,

My father is 62 years old and gets sprains all over the body, some times even if he laughs suddenly.
He would keep on bending and adjusting, until his pain comes down. Some times it becomes so serious and he just sleeps where ever he is standing. So what kind of treatment is required for him cos i cannot see him suffer that way.
His ailments:
Diabetic but under control.
Hyper tension under control.
Recently i got him operated for diabetic eye.
Hot water epilepsy which is now under control.

Regards,
Ashok Kumar N Rao
Bangalore