Hello i have noted your concern,
There are no specific medicines to induce sneezing but there are certain remedies to make ourself sneeze.
Next Steps
1. Wiggle a small tissue gently in your nose
2.sniff a spice like black pepper
3.pluck a nose hair
4.massage the roof of your mouth(hard palate) through your tongue
5.drink something fizzy
These are the most effective ways to induce sneezing!
Health Tips
Just to induce/ make yourself sneeze do not get in contact with someone who is having cold and flu, unnecessary he will get infected, and will be needing medication to stop it.
So it is not recommended!!