Habit of cracking nose lower cartilage, is it Okay?

Burning is not the norm after nasal surgery. Itchiness, numbness and tingling can last up to 12 months post rhinoplasty which usually occurs on the tip. Your symptom could be helped with steroid injection. Hope this helps. 

While it may be true that being young and in good health, four to five weeks maybe adequate wait time between surgeries requiring general anesthesia, I would advise you to stretch the time. Particularly, because both your surgeries are elective and both involve intra-operative positioning...

Hi Sarang456,In my long term practice in Rhinoplasty using silicone implant, I have only seen one case of real silicone rejection and that silicone had long been obsolete (no longer commercially available). Other so-called rejection is mostly caused by infection caused by a pin-point perforation...