EVERYONE STOP TRYING TO HOLD IT IN!!! The scream is because you’re using your vocal cords. Stop using them when you sneeze.
For example: -Say “ahhhhh” like a doctor is checking your throat. You’re using your vocal chords while exhaling
-Okay now just exhale. Now you’re NOT using your vocal cords.
That is the difference between using your vocal cords and not using them. You just have to not use your vocal cords when you sneeze to stop yelling.
Ah! Ça ira!