11 weeks after l ankle sprain. no fracture. still residual swelling on l side n pain on r ligament. pain worse after ankle exercise. should continue?

Stop exercising: And let it heal, if you are going to continue which you should not, make sure you have a brace on. Further excercise can damage the ligament more and could create an unstable ankle.

More Investigations: If the pain and swelling is present almost 3 months after ankle injury, it is more than a simple sprain. You need to see a foot and ankle specialist who may do MRI exam to see if a ligament needs surgical correction. Sometimes a plaster cast is used to rest the ankle and allow healing.

May need an MRI: Limit your activity for now and have it re-evaluated.