Hi, Aptamer. I'm sorry your Mom has MG. It's hard to say if it was a triggering event or simply exaggerated a disease she already had.

Here's some info for you. Other things that can make her MG worse are Atropine, which is often in eye drops given at an eye appt., neuromuscular blocking agents like Lidocaine given at the dentist and a lot of other drugs!

Wasp stings can have the affect of a cholinergic antagonist, like Atropine. Basically, you end up with less acetylcholine. It all depends upon what type of wasp or if it was a bee or other insect. And it will depend upon where a person is bitten (what part of the body) and how much venom goes into the body.

http://www.ionchannels.org/showabstr...p?pmid=2879703

http://emedicine.medscape.com/article/169324-overview

http://rsmumed.com/forum/showthread....gic-antagonist)

http://books.google.com/books?id=Nk2...holine&f=false

http://books.google.com/books?id=CP2...holine&f=false

My lower leg basically went numb after a honey bee sting but I can't say for sure if that was simply an allergic response or a lessening of the acetylcholine. I've had MG since birth, so mine was definitely not caused by a wasp sting. Probably just bad genes.

If you ever have a question about anything again, you can Google that thing and "acetylcholine" like "wasp venom acetylcholine." It will yield a better result since most scientists talk in terms of acetylcholine and not MG.

Annie