PredniSONE and everything under the sun

I have Crohns and had a flare up so I'm back on 40mg of Prednisone. I've been on 40mg now for 3 weeks and I start to tapper off in another 3 weeks. Well every time I start the prednisone again I get new side effects. This time, my gum are bleeding all the time and the pain in my knees are horrible! I still get the regular side effects, ie: Mood swings, joint pain, sleeplessness, sweating, swelling of my legs and hands, wanting to eat everything under the sun, moon face and my hair falls out! I wish the drug manufactures could develop a drug that would not be so hard on our bodies. I have to struggle with the pros and cons with every flare up. Do I want the weight gain, mood swings and hair loss or do I want to look good and be very sick! I'm 37 and was 16 when I found out I had Crohns.