Thanks for posting a query in health care magic.
From the description that you have stated it appears that your husband is surely having a serious mental illness but cannot be sure if it is schizophreni,schizoaffective disorder
or some other serious mental illness. All said he surely needs proper psychiatrist
help. If he has been institutionalized, I am sure he some diagnosis might have been surely made. If he refuses to take medications, the medications can still be given as covert with out the patients knowledge. But then it depends on the state laws where you are living.
Hope I am able to solve your concerns.
If you need any further details, you can contact me directly by using the below mentioned link:
Wish you good health.
Dr. Srikanth Reddy M.D.