PredniSONE and mg dosage

My 15 year old son was put on prednisone for orbital pseudo tumor about 5 weeks ago.He hasn't had many side effects except vomiting and the pattern seems to be every other day he has tapered down from 40 mg. to 20 mg. I thought maybe the pseudo tumor might be causing vertigo , i don't know if vertigo is sporadic like this? The vomiting didn't begin until right before his next day reduction on his prednisone. I don't know what to think of this drug at this point ,it did make his eye which was swollen completely shut, begin opening up about 5 hours after his initial dose of 40mg.But i don't know why he is vomiting off and on and it didn't completely stop his eye from hurting. Now the doctors want to biopsy his eye muscle since he is not responding well to prednisone reduction.God be with you all who are struggling with this medicine.

Hi All - I have been off prednisone for one week and I am not doing as well as I thought I would be at this stage. My symptoms are not flaring, which is a very good thing but I am so tired and feeling very depressed and low energy. I thought I'd feel great once I was off the evil prednisone but so far I am feeling almost as bad as when I was on it. My moon face has not started to go away, which sucks, but I guess I have to be patient. I am so tired of this situation as it feels never ending. Part of the problem is I have continued to work throughout my ordeal, and it's been very hard at times to carry on like a normal person who is not sick. I have been sick since last November (with an autoimmune disorder) and I had really hoped by this time that I'd be on my way to being better :( Prednisone saved my life but the side effects are horrendous, as are the after affects of it. Good luck to all who are taking it. I share your pain and frustration.