Is there any financial aid for the caregiver when caring for husband at home?

Not really. Not for spouses. Is your husband a wartime veteran by any chance? If not, there are state programs but In your state spouses aren’t eligible to be paid and family embers are usually ineligible as well. But the good news is, if your husband meets the financial and Medical eligibility requirements, he can be assigned a caregiver which would allow you to obtain employment outside the home.

If your husband is a Veteran, depending on where and when he served the VA has programs that will pay you to care for your spouse.