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My dog has moist skin spots. Is it ringworm if blue light is negative?

Updated On September 23rd, 2025

Pet's info: Cat | British Shorthair | Female | 6 months and 17 days old | 2.51 lbs

There are two of these in her !! I put a ble light they are not a fungus !! Should i worry ??

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1 Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on August 1st, 2017

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Toffee! Not all ringworm fluoresces under a blue light. It could be a skin infection from allergies or a non-contagious called demodex. From the pictures the areas look moist like she has been licking. If you can keep her off the areas then you can see if they start to heal. Otherwise I recommend that you take her to the Vet. They probably will shave the areas, give her antibiotics and something to stop the licking. Good luck!

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