I've just finished another round of treatment with Fumidil-B. Does anyone have a trick for dissolving the Fumidil-B into water? 1. When I mix Fumidil-B into water at about 100 degrees (F), it only dissolves slowly. Much of the Fumidil-B has the consistency of floating grains of sand which I crush against the side of the container. Is there a better way? 2. When I take the empty jars of sugarwater and Fumidil-B off the hives, I see a residue of something on the inside of the glass. Is this brownish residue the medicine (which floated to the top and stayed on the glass)? 3. Is Fumidil-B harmful or harmless to humans. I am mixing this stuff in the kitchen! Thanks, Tim Tim Sterrett Westtown, (Southeastern) Pennsylvania, USA [log in to unmask]