1. Allergic reaction: Some people may be allergic to the ingredients of Green Flag's maintenance solution, which may cause skin redness after use.
2. Excessive dosage or dry skin: If excessive dosage or dry skin is used, erythema may also occur.
3. Side effects of ingredients: Some ingredients in the solution may have side effects on the skin, resulting in redness of the skin.
If you have the above situation, it is recommended to consult a professional doctor in time to find out the problem and take corresponding measures.