Well I'm not really one to mess about with cottonballs, q-tips, voodoo recipes and hoping for the best. And I'm not afraid of using chemicals as directed either. Sure I'll use a quick dab of cinnamon occasionally during routine grooming but if I have a problem I want to use something I know will work. Or at least I want the peace of mind of knowing I did as much as I could... So after doing some research into what the professionals use/recommend I settled on buying Phyton-27 and found it at a local nursery. It's a systemic fungicide and bactericide product. No, it's not cheap. A 2 oz bottle cost $15 but I usually treat only on an 'as needed' basis. The only exception being that I usually do treat new plants received in the mail, particularly if they've been in transit 2 or more days. Anyway, I draw up what I need with a syringe. Those clear, marked medication cups work well too. 2.5ml in 25oz water is usually ample for what I'm treating. I have no idea how well it stores once diluted so I promptly use up whatever I make. But I'm definitely satisfied with it.