My marriage is suffering because my husband refuses to stop drinking. What can ...I....do?

Alot of terrible things happened because of Alchol. I can't stand to be around him when he's drinking. Although it's not nearly as bad as before, I just cringe at the thought of coming home and him being drunk. I don't want to be around him, don't want him to touch me, it's affecting the way I feel about him, and I have explained this to him many many times. I feel like he is choosing liquor over me. But........it continues. Help............