Prednisolone is wonderful but toxic.
As long as you take the medication and make serious lifetsyle changes now (ie low fat diet, sugar control, light exercise) you should escape the side effects.
I look athlethic, but prednisone has made me develop a very fatty liver and fatty tumours under my skin and on my gall bladder due to not altering my lifestyle accordingly.
I recommend that you give indomethacin a try to supplement the steroid therapy along with colchisine. this may enable you to wean off the steroids over a few months and hopefully the NSAIDs will do the job. If this works you can then go on to Naproxen which is less toxic still.
Theres a good book by D H Spodick (world leading pericarial diasease specialist) called 'the pericardium' this has loads of information that may help ya.
Best of luck,