What type of injection can be used to remove a mole?

I received multi procedures for mole removal at a skin hospital in Thailand. One was an injection into the site of the smaller moles on my hands and arm. And the other was a laser procedure for the larger mole. Do you know what they might have injected to remove the small moles? I am concerned it may have been some kind of placebo or something to lighten the mole not really removing it.

No doctor answers yet