• Use antibacterial soap or deodorant soap to combat body odour due to sweating.
• Wear cotton clothes during summer so that the sweat is soaked up.
• Instead of using deodorant, wipe your sweat producing areas like armpit using white vinegar or alcohol.
• Avoid using antiperspirant because they clog sweat glands, use alum instead.
• If your body odour is caused due to any medicine that you are on, then you need to talk to your doctor.
• Soak yourself for 15 minutes in bath water with couple of cups of tomato juice in it.
• Use baby powder to keep areas of heavy perspiration dry.
• To avoid foot odour wear cotton socks, never use socks repeatedly. Wash your feet properly. If possible wear open foot wear like leather sandals.

Source: Bombay Times