Hello. After almost 3 weeks, my grey's lip abscess is starting to drain on it's own today. My question is, do I let it be, or is there an antibiotic I should be giving her to help? I've read a few posts suggesting Clindamycin and even Metronidazole. I have Metro available (prescribed for my dog) and also have Clindamycin, although it's a topical lotion (for son's acne). Are either of these recommended or even necessary? From the beginning, the abscess does not seem to bother or affect her. I did give her Meloxicam early on in case it was painful. Thanks for any advice.