First off, I am not sure if allergy shots are like vaccine shots, where I know mercury is used for sure.
Do allergy shots have living biological stuff in them?

Anyways , what I heard was this -
The 'official-type person' said:
"there is no more mercury in a typical vaccine shot that you would get drinking a glass of milk". [ I can't rmember her saying "allergy shot" in that sentince though.

What does it mean?
It means she is dodging the question. How much mercury is there in milk? - then we would know something, but she didn't say.
She mentioned eating ocean fish too - that if you eat them, you might as well get the shot because you are getting mercury from the fish.

This means that we are getting mercury from a lot of sources, but primarily ocean going fish, canned tuna is the worst, and other souces like anything made in China! -
Chocolate can be bad for mercury too.

And so it is YOUR CHOICE TO ADD TO YOUR TOTAL LOAD OF MERCURY , or to just say NO...

For the kids, the lowest load possible is about right... no more than 'you simply cannot avoid because the sources of it are unknown'.

That would be the way I would strive to do it, so no, no allergy shots or vaccines, dental amalgam, tuna, salmon, sea foods for my children. Nope, enough!!
Mercury makes them stupid. Look at me! ]\

But I would look into if allergy shots use mercury , but don't expect a straight answer from the pharmacists!

The amount of mercury they use is what it takes to stabalise the stuff in the shot, so it won't deterioriate. That could be so small that it makes no difference - NO IT CAN'T!. It all makes a difference, it never leaves you totally, it will allways be leaching out bad stuff, all your life. That is one source of cancers...

Cuddy.