It's 1710, I just ate some shellfish for the first time and am having a severe allergic reaction. What happens next?

by shookby

Let's say I live in Great Britain. If someone in this region had a severe allergic reaction to a foodstuff, animal, plant, etc., what would their options be?

Searocksandtrees

Hi OP, can you specify a geographic location or culture? That would greatly assist anyone considering answering here. Thanks!