You can take Lamisil with food or on an empty stomach. Even though the fungus may appear to go away sooner than 12 weeks (or 6 weeks for fingernail fungus), it is important that you take it for a full 12 weeks (6 weeks for fingernail fungus) to make sure that you kill each and every fungus cell.
Ceramic-tile floors can be cleaned easily with nothing but warm water, but be sure to sweep or vacuum first to remove any loose soil or grit. Never use a sponge mop to clean ceramic-tile floors. It will pull the dirt right into the grout tracks.
When you want to clean your ceramic tile grout you can purchase cleaners that are designed to clean the grout, or you can use some common household cleaners that will give you the same result. If you have a colored grout a great mix that you can use is baking soda, water, and white vinegar.