Please don't yell at me if anything in this is medically/culinarily inaccurate. I have no idea if there's anything called sardine extract!
Kurt had been invited over to Isabel's house for a fancy dinner.
Blaine, of course, was invited as Kurt's date.
They both shifted uncomfortably in their dress clothes, the room a little too toasty for their liking.
"Well then I said, 'that's not a clam chowder, that's my husband!'" Isabel said. The other guests in the room roared with laughter, but Kurt and Blaine just smiled.
A caterer passed out a salad to each guest.
"Thank God. I'm starving," Blaine whispered to Kurt.
"So am I. We've been here for two hours and this is the first sign of food. Eat up, it might be another two hours until the main course," Kurt said. They both nibbled on their salads, slowly, trying to make them last. But something felt funny to Kurt. He was starting to itch all over.
"What's your problem?" asked Blaine.
"I'm itchy," Kurt complained.
Blaine glanced sideways at Kurt and his eyes widened: Kurt's face was getting red, blotchy, and a little swollen. "Your face," Blaine whispered.
Kurt quickly and wordlessly excused himself and went to the bathroom, mostly to hide.
"Isabel, can I ask you what was in the salad dressing?" Blaine asked.
"Well, it was a Caesar dressing with a little bit of sardine extract. Why?" she asked.
Blaine started to panic, remembering that Kurt was allergic to fish. "Um, no reason," he said. "I'm going to go check on Kurt." He left the table before anyone could question him. He knocked on the bathroom door.
"We need to go home," Kurt said through the door.
"Gotcha," Blaine said. He quickly updated everyone that Kurt wasn't feeling well and got him through the door and outside without anyone seeing Kurt's now even more red face. "We don't need to go home, we need to go to a hospital," Blaine said.
Kurt groaned, but nonetheless agreed. After a night in the emergency room, Kurt and Blaine spent the next day on the couch, Kurt recovering, and Blaine playing nurse.