1. It may be that the white tissue at the tip of your nose has not fully recovered after the first rhinoplasty, so the tip of your nose will slowly recover. It may also be the tension of silicone rhinoplasty on the tip of the nose. You can ask the doctor to see you first and make sure. It should be no problem.
2. Generally, rhinoplasty needs to be restored after 3 months, and the fastest time is 1 month. Otherwise, the tissue trauma will be great and it will be more difficult to recover.
3, washing your hair has no effect on this, as long as the wound does not touch water.