I don’t know a thing about prickly heat but since you brought up the theater...
Scene in doctor’s waiting room.
Man enters stage right limping and crying loudly.
Straight man on stage says: “Sir, why are you crying?”
Crying man: “I have tomain poisoning, so the doctor cut off my toe.”
Exits left, sobbing loudly.
Another man enters stage right holding his hat tightly against the side of his head and crying loudly.
Straight man on stage says: “Sir, why are you crying?”
Crying man: “I have ear syphilis, so the doctor, he cut off my ear, aaahh!”
Exits left, sobbing loudly.
Straight man on stage starts to exit left very fast saying: “Oh boy, oh boy!”
Nurse on stage says: “Hey, where are you going?”
Straight man turns and says: “I have prickly heat!”
Exits quickly.
Stage to black.
I was having all these fears that I was poisoned by weed killer, psoriasis, chiggers, etc. I looked it up and “prickly heat.” All I could think of was Liz Taylor telling Big Daddy (Burl Ives) that she had prickly heat. I once had to put some chlorine shock in the pool and it is a powder/dust. Well it was hot out and I was sweating - July or August when pools consume chlorine. I had been doing yard work. Some of the dust got on my shins and interacted with the salt (sodium) from the sweat. I am not sure what happens when sodium and chlroine interact but it is not good. Wow did that burn. I could not hose it off fast enough. It took a few seconds. Ouch!
Now we know what kind of “theater” you frequent.