Paronychia is an infectious disease characterized by the nail embedding into the flesh, leading to a purulent infection. This condition has a strong recurrence rate and is somewhat related to one's walking posture or frequently wearing shoes that are too tight. During treatment, soaking in vinegar does not have a direct therapeutic effect and should generally be avoided. Topically, iodine can be used for disinfection, and oral and topical anti-inflammatory medications can be used for treatment. The most common and thorough treatment method is to undergo a minor surgery at a dermatology department of a reputable hospital, where the nail is forcibly corrected to prevent future embedding and recurrence of the disease. It’s advisable to avoid wearing shoes that are too tight, and in cases of severe purulent infection, it's best to undergo minor surgery to drain the pus. Avoid spicy and stimulating foods and try not to stay up late.