Because I don't want to spend a night attached to an intravenous drip due to this bout with the shrimp, I hurriedly looked for an antihistamine. I think I ran out of Celestamine (R) tablets... and had to take Iterax (R) tablets instead. Annapet warned me that Iterax would make me dizzy and sleepy. True enough, barely an hour after talking with my parents, and up to now, I'm groggy and not fit to drive.
Oh well, this beats sleeping in hospital anytime!