Conclusion Large cotton press is worthy of clinical application, because this method can be effective in preventing the occurrence of hematoma after femoral artery puncture.

But thinking of his son's bad habit, he him to press the cotton into water.

Directions: Dot some with finger pulp on forehead, cheeks and mandible, then spread them from up to down, inside to outside, gently press with palm or cotton pad to make them blended well.