Video: Nose fillers being placed into the nose of patient
Source: https://www.youtube.com/watch?v=uogAO5c1ggo
How does nose fillers work?
Nose fillers uses the same hyaluronic acid gel that is used for lips and cheeks sculpting. The filler is injected through tiny needles into the nose bridge and followed by moulding of the nose, making it look perfectly straight.

Image 2.2: Before and After photos of nose fillers straightening nose
Source: https://themanseclinic.com.au/Blog/non-surgical-rhinoplasty/
Fillers can also be injected around the tip of the nose to make it look lifted, thinner and more elegant.

Image 2.3: Before and After photos of nose fillers used to make nose slimmer
Source: http://chicstreetstyle.me/tell-all-my-non-surgical-nose-job/
Fillers are also used to correct a droopy tip by boosting the tip up, or on mildly crooked noses by filling up the sharp angles.

Image 2.4: Before and After photos of nose fillers fixing crooked nose
Source: https://www.dailymail.co.uk/femail/article-2391151/The-NO-KNIFE-nose-job-revolutionary-procedure-smooths-bumps–surgery.html
Fillers contain some local anaesthesia in them, making the whole process painless, if not only mild pain will be experienced.
What to expect after getting nose fillers?
Nose fillers typically lasts for 1-1.5 years, depending on the type of fillers used. This is also one of the reasons why nose fillers are preferred over Rhinoplasty – the option to change the shape of your nose, or to reverse the process if you are unsatisfied with the results.
Are the chemicals in nose fillers safe?
Nose fillers consists of hyaluronic acid, a natural substance which has already existed in our body. It is biocompatible and biodegradable. It will be digested and removed from our body naturally.