Singapore is 100% first world. Hospitals you won't have to worry about, just be sure to check into your medical/travel insurance coverage.
Everybody speaks English. It's an official language, so you will be able to easily communicate his needs to restaurant staff.
If you go, I think sticking to more commercialized restaurants will suit you better than local food stall-type places, to avoid cross-contamination. Somebody else chime in on that, but I feel that would work best.
"Lesley is allergic to nuts, olives, olive oil and eggs and carries an Epipen. She manages her allergies by using business cards detailing her dietary needs printed off in the language of whichever country she is visiting. Lesley hands one to the person taking the order and insists it gets handed to the chef. She then ensures the same person who took her order serves her food."
Also seems to be a blog called Sneezy Wheezy about a mom raising kids with allergies in Singapore But my firewall blocked it and said they saved me from attack. So I couldn't read it and wouldn't recommend going to it. But here is the FB page www.facebook.com/pages/SneezyWheezycom/121015791309618
Singapore is 100% first world. Hospitals you won't have to worry about, just be sure to check into your medical/travel insurance coverage.
Everybody speaks English. It's an official language, so you will be able to easily communicate his needs to restaurant staff.
If you go, I think sticking to more commercialized restaurants will suit you better than local food stall-type places, to avoid cross-contamination. Somebody else chime in on that, but I feel that would work best.
All of this. I went to Singapore on a business trip last September. I had no trouble communicating with everyone at the hotel and at the restaurants I visited in English.
The bus/train system is pretty easy to use, too (I figure you'll be sightseeing while your DH works from your OP). The concierge desk at my hotel had some spare transit cards that previous guests had left behind, and I was able to top up the card by loading some cash onto it at a 7-11.
We were down in Singapore on a monthly basis when we were living in Malaysia. I don't knot about nuts and cross contamination since I've never had to ask but I don't see why asking would be an issue.
Like pp said, English is the language common to all the ethnicities that make up Singaporeans. All schools are bilingual with one language being English and the other language Mandarin, Tamil, or Malay depending on the student's ethnicity. You will have no problem getting around at all.
I speak from experience when I say that Singaporean healthcare is amazing, so should something go terribly wrong you and he will be in good hands.