Hi Sharon
As long as you have no open areas in the skin, begin to use Bio Oil - not the cheapest product but excellent. It is soft and easy to use. I was given some when in hospital (a gift from a friend) which was the best gift as I would not have thought to buy it for myself.
Once I began to get lymphoedema and attended a masseur for that she recommended I gently massage across the scar and this has done wonders to break up the bumpy bits. My scar is now a fine line and people who have seen it are quite amazed.
TIP - buy the big bottle as you will find it a great product. Watch out for a special as you can get it at pharmacies (and Chemist Warehouse) quite reasonable at about 20% off the normal price. You do not use much at a time as it spreads well.
Enjoy the experience as well, it has a delightful light perfume.
Hope this helps.
Summer :-)