You know if you keep posting your stuff in different threads, it's harder for folks to give you an accurate response since this new thread is missing all the background information you, I, and others already posted on your parasitic infestation!
The Levimisole HCL is a powder or you can buy Levamisole in the Jungle anti-parasite fish medication. You may be able to find Levamisole HCL as a pig dewormer at a farm/ranch supply store. You need to treat the entire tank with it, vacuum the tank, and repeat each week for several weeks. It is absorbed through the fishes skin. You'll only want about a 2% water concentration. If you post your tank size, I can give you the correct dosage for Levamisole HCL in your tank, but I would strongly recommend you try the anti-parasite medication with Levamisole in it first!