What Causes Persistent Pain And Oozing Of Fluid In Between The Toes?

i have some cuts and fluid between toes and sometime when drink more coke makes side of tongue burned and it takes sometimes to recover...but toes seems have no permanent solution. Between Toes effect mostly when walk dusty untidy areas and also if wear dusty socks and also if wear some leather shoes. It was not observed at the times when i was healthy and fit with doing exercises . currently some extra fat off cause. Is there any medical condition or