A dual syringe assembly that allows for two liquids to be sequentially injected through the same needle. By way of example, one syringe may contain a steroid and the other syringe may hold an anesthetic. The syringes are coupled to a needle by a connector. The needle can be inserted into a hand by medical personnel and manipulated until placed in contact with a tendon sheath. The steroid can be administered by depressing a plunger of the syringe that contains the steroid. The anesthetic can then be injected into the hand by depressing the plunger of the other syringe. The needle is then pulled out of the hand. The injection of the anesthetic flushes steroid from the needle and the Y-connector so that steroid is not ejected onto surrounding tissue when the needle is removed from the hand.