I've never had a problem with smelly feet before. but now my feet always smell and i can't get rid of it. help?

Moisture: Usually this is do to too much moisture in your shoes or old shoes.Best to get new shoes if they are old, aslo keep feet bare for a while when not wearing shoe.Another cause could be a fungus

Smelly feet: As stated , fungus is a frequent culprit. Other causes are excessive sweating , pitted keratolysis, poor hygiene , brevibacterium , old smelly shoes , etc. See your podiatrist for assistance