So my juvenile bearded dragon has this nasty sore between her hind legs and it hgoes along her right hind leg. She doesn't show any signs of pain and uses her right leg just as much as her left.
Poor thing. Looks like it could be yellow fungus. Don't give baths as that spreads it. You can use a antifungal cream. I'd take her to the vet so they can test it to be sure. Make sure if you have another beardie that they are not around each other as it's very contagious.
I agree, that looks very much like Y.Fungus.....very serious and difficult to treat. Be sure that your vet is experienced because some vets prescribe antibiotics, and that is the wrong med. and can make the condition worse. Have the vet do a skin scrape to be tested. Your dragon will probably need oral antifungal meds. like voraconazole or itraconazole along with antifungal cream like Destiny mentioned [ Lamisil, Lotrimin, Monistat ]