I met someone once who said a good sneeze is almost orgasmic.  I got goosebumps because that's how I always felt.  Sometimes, sneezing can almost be like a mini-cry, at least I've seen sneezes like that.
Like, someone pulls out a bunch of tissues from a box(or a hanky) and sneezes into them.  Then, they might tremble a bit, then hold the tissues over their face a moment, while composing themselves.  The vulnerability in that gives me tingles down my spine.  I feel honored to have witnessed that.  And I love the "bless you," as well.  Especially when it's a particularly powerful sneeze, and someone says, "Oh!  Bless you!  Oh my goodness!" because it's such a strong sneeze, lol. There's compassion from witnessing the vulnerability.  I love when the person who sneezes laughs a little, with watering eyes.  Very sweet lol.
Actually when I sneeze, some sobs come out. It's not like actual crying for any reason, but it's almost like a natural reaction to a powerful sneeze.    So it's a natural release.  It does create endorphins in me, lol.