Yes, it is diluted enough (if it is a homeopathy medicine) that it won't harm you even if it is incorrectly selected remedy.

Selecting the correct medicine for your allergy (or any other problem) is much more difficult in homeopathy. You need to take into account many factors. So selling off-the-shelf homeopathy medicines is probably going to make some money for the manufacturer but not cure you (from the point of view of a homeopath of course)