Is it safe to use the skin drop / dropper method during an allergy test?

Yes. The goal should be to drop the allergen onto skin without the dropper touching skin. If the dropper touches the patient’s skin, it cannot be placed back into a well of allergen as this contaminates the supply. Once the drop has been placed on the skin, use only new, sterile needles to scratch the skin. Safely discard the needle after each scratch.