If she's that reactive, she probably shouldn't be at a dog park where dogs are supposed to be off leash. Trains?If you must pick her up to protect her, then you must. But realize that picking her up is, in her mind, a reward. So only do it to save her life. If she's the aggressor, try not to. Instead (she's on leash, right?), walk sharply or run AWAY from the other dog. Let the leash snap her sharply toward you. She'll get a correction but she won't die. It will focus her attention on you.