To get tough with bromhidrosis, start inside and work your way out. First, treat the feet. Apply a light coat of your favorite antiperspirant deodorant, the same stuff you use under your arms.
Next, take care with footwear. Look for socks made with wicking fabrics. These materials draw moisture away from feet and into the fibers, where it more readily evaporates. (In contrast, most wool and cotton hold water like a camel.) Special blends of polyester, acrylic, and natural fibers have been developed for their wicking properties. These manufactured fabrics also keep their shape better, resulting in a better fit. Too-small socks that squeeze the feet and too-big socks that bunch up in the shoes can increase sweating. If you prefer natural fibers, socks made from small wool fibers like Merino are a good choice.
If you want to go high-tech (and you're willing to go high price), antibacterial socks made with silver nanofibers might be a worthwhile investment. Silver ions cling to the fibers to imbue them with the metal's natural bacteria-fighting ability.
Choose shoes that promote air circulation too. When possible, opt for sandals and shoes made with canvas, leather, or nylon mesh. Add odor-quelling insoles with activated charcoal and baking soda for added insurance. A shot of disinfectant spray isn't a bad idea either.
Wear only dry socks and shoes. Change socks twice a day if needed. Alternate pairs of shoes, wearing a different pair every day to let them dry and air out.
Finally, eliminate odiferous foods from your diet. This is sacrifice if you love garlic and onions, but your family and friends will thank you.
If at-home remedies fail, consult a podiatrist. He or she might prescribe an extra-strength antiperspirant or an antibiotic if a virus is to blame for the condition. A thorough physical exam to identify an underlying cause may be in order.