Hi welcome to the health care magic Don t try self medication without doctor consultation and examination.... Vicks cough lozenges usually doesn t lead diarrhea Here if fever, mucus in stool etc if not present than it could be non bacterial diarrhea... For which you can be prescribed probiotic tablet.. For diarrhea antisecretory drug like racecadotril prescribed.... Drink more water and maintain hydration.... Take small meal with frequent interval Avoid smoking, alcohol and excess spicy and fried foods.... Hope your concern solved Take care Consult physician for examination with keeping all this in mind