Epi Pens, Benadryl, etc. I am allergic to all fish and seafood and did great in SXM. Also have contamination issues. Never ate at Johnnie's Under the Tree for example.
Got sick once in Abaco from chicken fried with fish. Hives all over. And twice in Miami. Ended up in ER for IV Steroid. Even so, not paranoid.
Should be fine. Pizza, burgers etc. Salads!
And I too operated restaurants and the best advice is speak to manager or cook when you get there.
Cheers
irina