Yesterday for no reason my left foot started to smell of fish. The right one is normal. I don't usually suffer from smelly feet at all. Does anyone know what this might be? The odour isn't so strong that you can smell when I'm wearing shoes, but I can smell it on my sock. It seems to be coming from the area of the ball of my foot. There is a patch of hard skin there, but nothing else I can really see.
Does anyone have any idea what this is and how I get rid of it? I'm worried it might start getting worse and become really strong!