@Iphillips May I asked what part of the dura or brain is affected by the inflammation/Pachymeningitis? Your husband may need to see a neurosurgeon instead that specializes in the brain stem or if anywhere close to the cranial nerves. I was also placed on prednisone 60mg daily taper down for a few months. However, the symptoms and inflammation came right back soon after stopping prednisone. Due to my type 2 diabetes, the team of doctors decided on Rituximab Infusions. So far I’ve had 4 sets on infusions since 2016 and that seems to help for at least 6-12 months. My cranial nerve 6 was affected which permanently moved my left eyeball inwards which caused the double vision. It corrected itself after about 8 months. Neuro Opthalmalogist is also a good next step. I had a neurosurgeon because they first suspected it to be a small meningioma in the cavernous sinus brain stem area. So I was first treated with gamma knife procedure then the growth/inflammation returned after 5 years. Hope some of this information helps you and your husband.