Please choose the correct ending to complete the given sentence: Health: [header] How to give humira injections [title] Wash and dry your hands. [step] Place your hands under cold running water to wet them. Squeeze a small amount of soap in the palm of your hand.

Ending1: Use your fingertips to gently puree the soap into a smooth, gel-like residue to begin the injection. [substeps] The more you apply the soap, the smoother the injection will be. Ending2: Working with only your hands, rub the soap in small circles. This will clean your hands and prevent dirt from standing on your cuticles. Ending3: Rub your hands together for 20 seconds until a thick lather forms. Place your hands under the running water to rinse them until all of the soap is removed. Ending4: Rub it over the epidermis (the side near the injection site). You are likely to feel a slight stinging sensation, so applying a little more will work better with your hands.

Answer format: ending1/ending2/ending3/ending4