Apple cider vinegar can be used on all types of warts. The acid in the vinegar attacks the wart area, causing it to peel away from the healthy surrounding skin, taking the virus with it. It is safe to use on the face and other parts of the body. Dilute it up to 50% with water.  In fact, the malic and lactic acids found in the vinegar can help to soften and exfoliate the skin. These ingredients are commonly used to treat acne on the face. To apply apple cider vinegar, soak a cotton ball in vinegar (about half-soaked) and place it on the facial wart. Then, cover the area with an adhesive bandage for 24 hours. Garlic’s caustic effect will cause the facial wart to blister and fall off in about one week. The substance allicin in garlic has an antiviral effect that kills a broad spectrum of viruses, including human papilloma virus.  Crush the garlic and apply it to the facial warts. Hold it in place with tape for 24 hours. Change the garlic and tape daily. Lemons are an everyday item with a variety of cleansing properties. The citric acid in lemons contains vitamin C, thought to kill the virus that causes warts. This may also help to soften the wart, making it easier to remove. Apply to the facial warts at least three times per day. Although this remedy is not medically verified, some people claim that it works fast. Duct tape supposedly works because of how the body reacts to substances that are contained in it. The use of the duct tape will irritate your skin, which can cause the formation of antibodies that will help get rid of the virus causing your facial warts. This must be done for periods of six days, up to a maximum of two months.  Cover your facial warts with duct tape when you sleep, and then remove it right away when you wake up in the morning. Repeat this procedure as necessary until the wart is removed. Banana mash contains a proteolytic enzyme (an enzyme that breaks down protein) that digests and dissolves the facial wart. This can be an easy and soothing way to remove facial warts. Use surgical tape...

TL;DR in Vietnamese:
Thử dùng giấm táo. Nghiền nhuyễn tỏi để làm mặt nạ. Thử dùng nước cốt chanh. Dán băng dính lên mụn cóc. Thoa vỏ chuối. Thử dùng betadine. Thoa kem cây bông tai (milkweed cream).