Step 4Practice and preparation
Turn the can upside down and grip the trigger with your index finger. Pretend it's a gun and say "pow... POW" for some extra entertainment before continuing.
Now, very gently pull the trigger and practice holding it steady at a rate that won't drip freezing liquid everywhere. You want the liquid to evaporate just before it drips out.
If you can do that competently enough, you're ready to kill some warts.
This part is highly unnecessary, but it's good to be safe-
Clean the wart and surrounding area and also the Q-tip with some rubbing alcohol. Although many dusters are made from alcohols and gases that will naturally sanitize, it can't hurt to play it safe.
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