Hello! I have the exact same problem, although I do have some crusting and itching once in a while in the same place behind my right ear. What I do is when I shower in the morning, I take a pair of rough bath gloves, soap them up, and gently scrape away the dead skin.
When they are absorbed, they can be released in sweat through skin. Foods like yogurt, onions, garlic, red meat, cabbage, spices like coriander, and asparagus may result in increased body odor when consumed in large amounts. When you have a diet rich in proteins, you may have vinegar like smell on sweat.
Baking soda is a good odor remover. Sprinkle on the floor and let sit overnight. Vacuum up the next day. If that doesn't work, try mopping with 1 cup vinegar to 1 bucket of water. As the floor dries, the vinegar smell should evaporate. If neither of those work, a 3% hydrogen peroxide sprayed on the floor and left to dry might work. This is great for stains, by the way.