Some people think the concept of the "triangle of death" on the face is quite vague and inaccurate. However, Harley Street, a dermatologist with 20 years of experience in the UK's National Health Service, said she has seen some serious complications when popping pimples in this area.

According to Ms. Street, the triangle of death basically extends from the philtrum (between the eyebrows), through the inner corner of the eye, down to the area near the nose and ends at the corners of the mouth. She said that in some cases, although rare, popping pimples in this area can cause serious problems, even death.

The reason is that the nerves in this area are directly connected to the brain through the cavernous sinus - a network of veins behind the nose and eye sockets that helps blood circulate away from the brain. Popping pimples, injecting fillers or piercings here leaves an open wound, allowing bacteria to travel down to this area and cause infection. Infections here can directly affect the brain as well as the rest of the body. In extremely rare cases, squeezing pimples in the triangle of death can cause an abscess or blood clot that can lead to a stroke.

In fact, most pimples are formed due to blockages in hair follicles or sebaceous glands on the skin. Bacteria often get stuck in these glands and multiply, causing an inflammatory reaction that leads to whiteheads, blackheads, and even cysts. Dr Street said that during her work, she had seen pimples as large as lemons.

She recommends that people do not squeeze pimples, as this can cause infection or scarring. Squeezing pimples with metal tools incorrectly can cause the infection to go deeper.

Some types of acne affect even babies, and can expand into open sores and develop a crusty crust. A woman previously shared a photo of herself popping her baby's pimples with a needle. However, experts say this is quite risky because children's skin is especially sensitive. Sandra Lee, an American dermatologist, recommends taking your child to the doctor if you notice unusually large pimples that take a long time to heal.

If a pimple stays on the skin for 6 to 8 weeks, dermatologists say it could be a sign of basal cell carcinoma. They appear in many places on the body, but mainly in the sun-exposed areas around the nose. If you notice pimples that are growing for an unusually long time, you should see a doctor for a check-up.