Your description of your problems with your husband's odor is suggestive of a developing phobia. Are there other problems in your relationship with your husband or in your daily life? The most effective treatment for you is to seek treatment from a mental health provider. That person would work with you to get a complete life history and your relationship history to develop a working diagnosis and appropriate treatment. In some cases, these kind of symptoms are actually developed from childhood events that aren't expressed until adulthood. There are medications that may help short term, as well.
Good luck to you, and I hope that you will try mental health treatment.
Faye, RN, MSW