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					Originally Posted by Gingergirlsmom   I'm not yelling either.  My shihtzu had a HORRIBLE problem break out from using a Hartz flea collar.  After just a few days she had open, oozing sores on her neck.  We threw it in the trash, took her to the vet (gosh, this was probably 15 years ago, don't remember what they did) and have never bought a Hartz product since.  Or used a flea collar.     |  
 
  They must not have it as bad as your pup did b/c we only put them on when they went outside. When they came back inside then we took them off. I guess I need to make a vet appt.