There's not too much you can do to stop explosive diarrhea other than waiting it out until it goes away on it's own but you can try taking some Pepto Bismol and try eating some Yogurt with live, active cultures.
You can also eat things on the BRAT diet such as Bananas, Rice, Applesauce and Toast which can sometimes help stop the diarrhea.
Also having diarrhea especially the explosive diarrhea can dehydrate you so be sure to stay hydrated by drinking plenty of water, tea, juice etc and also drink some Pedialyte to replace lost electrolytes.
If the diarrhea still continues after a few days then you may want to go to the Emergency Room or Urgent Care to see what they can do as they can sometimes stop the explosive diarrhea when home treatments don't work.