For a nosebleed, you tilt the victim's head down and press the nose. You do not tilt the head back, so that blood does not fill the throat and cause choking or nausea.
To stop a nosebleed, tilt the victim's head slightly forward (down) and keep pressing the nose. Tilting the head forward is very important, because it keeps the blood from running down the throat, which could otherwise cause choking, coughing or nausea.
Option 1. With the head tilted back, the blood will run down the throat, creating a risk of choking and stomach irritation.
Option 3. Putting in dry cotton is not the right first step, and when it is taken out it can tear off the clot and restart the bleeding.
Option 4. Active bleeding must be stopped with direct pressure, not ignored, to prevent unnecessary blood loss.