Can Botox and fillers help with nasal flaring when smiling? (Photo)

Botox can be used off-label to treat nasal movement with smiling such as nostril widening and nasal tip being pulled downward towards the lip with mouth movement. It's best to see an experienced provider for this treatment who will discuss the risks. Start with low dose. It's best to return for more units if needed than putting in too many. Botox may drift or may be placed in unwanted muscle areas affecting mouth opening, smiling, eating, speech, asymmetric or unbalanced smiles, create difficulty brushing ones teeth, etc.

Botox can be used to subtly soften the muscles that result in nasal flaring. The treatment is done in the office with final results seen after two weeks. The effects will fade gradually over three to four months. See an expert injector for treatment.

Yes, the nasal flaring you are referring to can be corrected with small amounts of Botox/Xeomin.

Hi there, 
Your nasal flaring with animation can be addressed with Botox/Dysport/Xeomin. 
Honestly, if you have to tell your injector where to inject, go to someone who is adequately trained.  
Best of luck!