Help me help him 😩💔

Kr

My husband says he thinks he is depressed and he has been getting super bad anxiety. He recently (4months ago) had major weight loss surgery and ever since he says he feel chemically off that he just feels down a lot and stressed way too much over things that aren’t that big of a deal. After his surgery( a week later) we had our baby girl. It’s a lot to take in at once and it’s taking a toll on our relationship. I told him I’m always here to support him and just be his shoulder if that’s what he needs. As I have suffered with server depression and anxiety in my younger years so I know the feeling. How can I help him? Any advice on what I could possibly do to help him. I suggested maybe seeking advice from his FCP if further intervention is needed.