The steroids help to shorten the
recoveryRecovery position - series phase of the symptoms. However, if nerve damage occurred due to the inflammation, then the steroids do not reverse this. The steroid treatments also help to suppress other areas of inflammation in your brain and may also decrease other relapses. If you are using the steroids intermittently then you should not have a problem with the long term side effects. However, if you are not on one of the other MS agents, it may be more beneficial in the long term. These medications (Avonex, Betseron, Rebif, and Copaxone) are designed to slow the prgoression of the disease. Good luck.
http://health.groups.yahoo.com/group/FriendsWithMS/message/17055