What will happen if we stop chemotherapy after 3 cycle in hodgkin lymphoma ?

Talk to your doctor: I would strongly suggest you talk this out we your oncologist. The present chemotherapy regimens exist to allow you the best chance at remission. While stopping early doesn't mean the end of the world - it does mean you may hurt your chances at successful treatment - something like this shouldn't be done lightly. Please take your time with a decision like this and rely on trusted care providers