Yes! Don't pop it. Apparently , the blister will heal on it's own.
Is A Wart Supposed To Get A Huge Blood Blister Under It After Being Frozen?
You should not use any medications but You get healing it through the home remedies that is much effective for such cure that you mentioned above.
Although you should try wart removal, you can get more home remedies to get rid of warts of any kind.