I have a 5 year old female Chocolate Lab that just had an oozing mass removed from her chest. It was biopsies and came back negative to cancer and fungal related disease. She has had 2 other masses appear and are oozing. One on her leg and one on her lip. She has been on 2 rounds of skin related antibiotics and is on her 3rd round of other antibiotics. After her surgery, she instantly started have problems moving, getting up, and walking. The pain is in her back side, but she does not seem sore to the touch. Her surgery area has healed and she is no longer sore in the front, other than her leg where the mass is. I have also found 2 more masses-one on her hip and one on her side/abdomen area She has also lost interest in eating and if we don't wet her food down, it gets stuck and she coughs it back up. The vet is at a loss as to what it is. Any suggestions?