My 4 year old rescued cat suddenly developed a seizure disorder in March. She was on valium but was a zombie so now, has been on phenobarbital, 12.5 mg twice a day. Once a week she has a seizure. I never see them but find her sitting covered in drool. She also has been chewing her legs. One area is slightly raw. I live in the Caribbean so no sophisticated vet care. What can I do?