Respected user, hi I evaluated your query thoroughly.
*Pain is in relation with '' stretching '' veins where they had removed some
for the graphs for heart valves & also due to scarring post-surgery.
*For prevention no medicines just
- regular light exercises, walking , meditations , YOGA
- have sound sleep of 6-7 hours
- avoid
smoking / alcohol
- keep BP , Blood sugar ,
Cholesterol , weight under control .
*Treatment -
analgesic as & when required .
Hope this clears your query.
Thanks for referring Health care magic & reviewing my answer.
Welcome for any further assistance.
Wishing him healthy life ahead.
Regards.