I've been using the e-collar on Cujo for the last 4 or 5 days, the e-collar on him about 10 or 12 hours a day... I don't know if this has been this way for a few days and I didn't notice it or it just happened today, but I just took his e-collar off him n the fur under the collar is all wet n nasty looking, n he won't let me part the fur to see whats wrong with his skin under the fur, but it doesn't look good.... I've used the collar only on very low settings, the type of stim that you can do to yourself all day long and not really care... the Innotek "Fur Penetrating Tips" have a nipple-like thing on the tips that could have possibly dug into his skin... the collar wasn't on too tight so I know that wasn't it... I've heard of dogs burning their neck from continuing to bark thru a bark collar, but I haven't used the e-collar enough on him to think it could burn him?? Anyone ever experienced this? It's making me not want to use an e-collar on him again... which sucks because it's the one tool that makes his OB perfect.