You can search for information on Astragalus, D-Mannose and SSKI iodide sugar on the web. SKI iodide is available from drug stores. Yes, Cats' Claw and Wormwood are very good herbs.
Make certain t odrink not more than 6-8 glasses of water per day, otherwise you will flush out plenty of minerals and vitamins. Drinking too much water can severely deplete immunity.