Abscess Irrigation (for cats) 1/4 teaspoon sea salt (or table salt) 1 teaspoon Betadine solution 1 cup distilled or spring water Mix salt and Betadine solution in the cup of water. Warm to body temperature by setting the cup in a bowl of hot water. Fill a syringe or baster with the formula. Gently place your cat in the bathtub, stroking it reassuringly. If your veterinarian has inserted a drain tube, gently insert just the tip of the syringe or baster into the tube opening, taking care not to wiggle the tube. Slowly inject the solution into the abscess pocket. If you inject it too forcefully, it will tickle and cause your cat to struggle. Gently press the abscess pocket flat, expressing the fluid and abscess contents out. Repeat this procedure two or three times. Use this formula twice a day to flush out debris and infectious material after your pets abscess has been opened by your veterinarian.