Simple and Direct:
* Achoo!
* A-choo!
* Atchoo!
More Realistic:
* Ah-choo!
* A-tishoo!
* A-choo-choo!
* Atchoo-choo!
* Achoo-hoo!
Descriptive:
* A sharp, explosive "achoo!"
* A sudden, forceful "A-tishoo!"
* The sound of a startled "Atchoo-choo!"
* A booming "Achoo-hoo!" reverberated through the room.
Onomatopoeic:
* Krrrk! (A more forceful and guttural sneeze)
* Shhh-achoo! (A softer, quieter sneeze)
Ultimately, the best way to write the sound of a sneeze depends on your individual writing style and the desired effect.