As two actions, you can create a packet of coarse yellowish-red powder. As an action, a creature can throw the packet at a point within 5 meters, where it bursts on impact. Each creature in a sphere centered on that point must make a Fortitude saving throw. If the creature doesn’t breathe, the concoction has no effect on it.

On a failure, a creature is affected for the duration. An affected creature spends its actions sneezing.

A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.