[YEA] At the first sign of a cold (scratchy throat) I use H2 3% by gargling. I use it straight from the bottle. I've never had the flu. (I'm 56) (I don't take flu shots.) If I do get a cold, (I haven't had one in 3 or 4 years), if I gargle with H202, the cold only last about 2-3 days. If it comes at all! I believe in it healing powers and told my sister to try it on her foot where she has a horn. Her Dr. doesn't know she using it, but is totally surprise that the horn is not growing like it should! She can now walk on that foot with out pain! The Dr still wants to do surgery on her foot, but I asked her to hold off for a while to see what will happen with her using the H2. It has cured colds, cleans the wax out of my ears. I tell my grandsons to use it for their pimples. I use it on the fungus on my toe nails. I didn't know about using it for plants. I will try that next! I love the stuff.