How can one lose pred-gained weight?

Finally, after one year and a half and getting hypertension, I could get rid of the darn pred. However, I gained 14 kilos and I was just wondering if I could lose them. I already lost the moon face during the tapering phase but I have got a rounded face instead of my normal bony face. Also, after stopping it, I noticed that some clothes have become loose somehow. I don't work out as I don't have any energy and all I do is go to work, otherwise I stay in bed in the weekends. Most of the weight gain is fat collections in my legs, abdominal area and back. Are there any suggestions? I know that the weight loss won't be that quick but I'd like to lose some.
Thank you very much
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Current meds: Entocort (6mg), Pentasa tablets (2g), Pentasa enema, Nexium 80, Zantac 300, Zantac effervescent (whenever needed), Concor 5(hypertension).
Pending meds: Methotrexate im injection 25mg/week, B shots, folic acid and multivitamins (my stomach can't tolerate these at the time being).

C6H12O6, thank you very much. I'm not sure I can change to SCD at the moment but I'll try to change my diet.
Take care!

I get off my pred, accordingto the tapering chart, on Valentine's day & I haven't really gained much weight(I need to atleast maintain my weight) but what helps me lose weight is really watching my sodium intake, and fat, especially saturated fat, content and jogging about 3 miles a week. I break it up and do half a mile-mile one day & skip a few days then repeat. You never know how your Crohn's wil act up so that way I have 'break' days when I'm too sick, fatigued, busy or let's face it, too lazy to work out :) I also try to cut back on my sweets during the week and treat myself on the weekend.

Keepingfaith and Sgirl, thank you very much. It seems that the clue for losing weight is working out. I'll try to push myself to walk regularly though I have no energy and cutting pred off made D return.