I am sorry for your husband. Cerebellum is where the stoke occurred which is also called the little brain at the lower back of your head and ischemic means the stroke was cause by a blood clot . I am almost two years since my cerebellum stroke(it was a clot too) . I still have mild balance issues. It takes time, some rehab, Physio too to help. I have spent a lot of time in the pool to strengthen the left side. I can’t believe I am still getting better after this time but it is small amounts. Don’t be discouraged- it takes time.