As already mentioned via several of our members, and I have to agree, not all fungi will "glow" under a Wood's Black Lamp/Light. Cats CAN have skin/hair fungi infections that do NOT put off a neon yellowish or greenish glow.
Just because neither you nor your vet cannot see a "glow" does NOT imply that the cat is fungus free. The only way to 100% rule out ANY fungus infection is via a hair CULTURE. Hair cultures are NOT the same thing as a skin/hair SCRAPPING. Furthermore, Ringworm is NOT the only fungus infection that cats can contract (although it is the most common.) Unfortunately, cats can also contract Athlete's Foot and Jock Itch, both in which are cousin fungi to Ringworm. Back in February 2005 I had firsthand knowledge as to the chaos and frustration that a ringworm outbreak can create. The veterinarian prescribed an oral medication called Fulvin a.k.a. Griseofulvin. A prescription of sixty (60) capsules cost me literally $60.00 dollars. The medication has two (2) drawbacks. One (1) it is hard on the liver (ANY anti-fungal medication is hard on the liver) and two (2) the medication MUST be given a minimum of thirty (30) days. Therefore, even if it appears that the fungus is gone, keep the cats on the meds! It takes approximately thirty (30) days (sometimes longer depending on the severity of the epidemic) for the fungi spores to die. Also, I bought Omega-3 Fish Oil 1200mg (EPA 216mg & DHA 144mg) to help aid with the itchy skin and/or coat. Each of my kids got one (1) WHOLE gel-cap daily. I neither pierced the gel-cap and squirted the oil onto their food nor into their mouth. Each of my kids swallowed one (1) entire gel-cap whole EVERY day. This particular regimen was administered to thirteen (13) FeLV negative cats for OVER two (2) months. Since 02-11-05 I have had two (2) separate hair CULTURES sent to a diagnostic laboratory (samples from two (2) different cats) and have gone through hundreds of dollars on Fulvin a.k.a. Griseofulvin. The end result now virtually a full year later? Both of the cultures have came back negative! It appears that my kids have never had ringworm to begin with, but were prescribed a medication via a veterinarian as a "precautionary method." A medication that can cause liver damage! (Not to mention hundreds of dollars needlessly wasted.) Now on top of completing the other eleven (11) hair cultures (for piece of mind) I need to have Complete Chemistry Feline Health Panels (blood-work) drawn up on EACH cat to obtain current liver and kidney values which will confirm if ANY damage has been done to those organs! Which means MORE money will be spent before this situation has been successfully resolved! Therefore, be extremely careful when searching for a successful treatment on ANY fungi infections! ALWAYS do a culture FIRST! Then IF the results come back positive treat with proper medication. Chronic continued use of ANY drug that is hard on an organ can render it useless and can eventually kill it. A cat without a liver WILL die. All thirteen (13) of my kids are still living and breathing! Hopefully my terrible experience can help save someone else from being misguided down the same damned and dangerous path! Good luck! Lora __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com