Is it possible it could make her sneezes stronger? Hmmm.
As stimulating as I find such theoreticals, I don't think it's possible. These skills do not actually increase the user strength but rather they increase the damage of an attack the moment it lands on a target...
In other words, the sneeze itself would not be stronger but if someone gets sneezed on, it would somehow hurt more...

...But it could theoretically happen with a different skillset.
Uhhmm, sorry for nerding out. XD