Reaction Jokes

A patient came to the ER with a rash. I told her it was an allergic reaction and that I'd prescribe her steroid cream. She asked me if she'd be discharged soon.

She was really itching to get out of here.
Twinkle Twinkle little star,
how I wonder where you are.
Giant thermonuclear reaction,
held by gravitational attraction.
Twinkle, twinkle little star,
you look small since you're so far!
I'd tell you a chemistry joke but I know I wouldn't get a reaction.
What do gnome allergy sufferers call a reaction caused by daisy-like flowers?
An aster-risk.
When Miss Acid told her husband, Mr Alkali, she was pregnant...
He exploded with anger.
It wasn't the reaction she was hoping for.
Funny chemistry puns always get a good reaction.
You're like an exothermic reaction, you spread your hotness everywhere!