S.B.
Get a bag of charcoal briquettes and put some in a coffee can or plastic container and leave them open in a corner of your closet.
Charcoal absorbs moisture.
I had a leak in my windshield on my car and things got really damp inside.
I kept briquettes in the back and you'd be surprised how well it works.
Just replace every other week or so.
Best wishes.