am not a doctor, and I cannot provide medical advice for any individual situation. Problems involving homemade chemical solutions for skin treatments are high risk because the skin is very sensitive to chemical ingredients, and improper use may lead to infection, allergic reactions, or other serious consequences. Generally speaking, the ingredients and concentrations of skin treatment products currently on the market that have been strictly tested and regulated are the result of extensive verification under professional laboratory conditions. If you have skin problems, the safest thing to do is to consult a professional dermatologist or pharmacist, who will recommend a proven treatment plan based on your situation. Special reminders are: 1. Preparing chemical solutions yourself may lead to unforeseen dangers (such as chemical burns, toxic reactions, or cross-contamination). 2. Many so-called "common ingredients" (such as salicylic acid, benzene peroxide, ethanol, sulfur, etc.) have strictly regulated concentrations and ratios in medical products, which require professional knowledge and equipment testing. 3. Online information is often no substitute for face-to-face consultation with professionals, so be sure to discuss your plans with a qualified medical professional before any attempt. For safety and health reasons, I recommend that you follow legal, proven treatment plans instead of trying homemade preparations that have not been fully tested. If you are curious about the principles of certain ingredients or products, you can learn about scientific research literature through formal channels while ensuring safety, but ultimately you should obtain professional medical guidance before applying them to humans.