Sounds like they are doing injections... She may have already had the first injection and now on the two inj part or they are just doing two injections. Do you have heartworms in Ma? You def want to have her tested in 6 mo and keep her on prevention that whole time even if not needed where you are. There are baby heartworms circulating in her blood and it takes 6 mo from them to Reach the heart and become adults. These will not be killed by theinjections.