Hi, Thanks for your question on HCM I do understand your pain and discomforts As per your problem is concerned first I will tell you that both drugs increases your sedation level so better try to avoid baclofen with Demerol. So in my opinion by taking pain killer is not the solution at all. Go to the root cause of pain and what is your MRI scan report indicate and how serious your injury?so to know in detail you need a physical examination by a doctor like a neurologist in your area. There are various options available for it which depends upon exact cause. Hope that helps