I am very concerned right now. My chihuahua Lola got her 1 year rabies booster shot on August 6th. Yesterday I noticed a lump on her right side, sort of near the area where she got the vaccination. This lump was never there before and the doctor definitely would have felt it when he gave her the shot. Lola is thin and when she stands, you can actually see the lump sticking out. I've felt it and it's hard and doesn't move and doesn't seem to be hurting her. I read that dogs can get hard lumps at the injection site after receiving a shot. This is the first time Lola has gotten a rabies shot since I had her, so I wouldn't know if this is just how she reacts to it. I am calling the vet later and I will be bringing her in to get it looked at, but I'm just very worried right now and can't get it off my mind. Has anyone had this happen to their dog after a vaccination? And sorry for rambling.