Hi MSbelle,
If you feel you are not getting some relief from Baclofen then speak to your Neurologist about a different medication. Baclofen is not the only option in treating Spasticity and a combination of a couple of medications can be used.
http://www.mymsaa.org/about-ms/symptoms/spasticity/
Steroids are used for exacerbations (relapse, attack, flare-up). Not all exacerbations require steroids. Exacerbations, for some, can resolve without the use of steroids. Sometimes steroids are a temporary solution for an on going symptom(s).