Question

A seven-year-old child has another black line appearing on their small nail, and there are no physical abnormalities. The county hospital cannot identify the cause, there is no allergy, and there is no family history of hereditary diseases.

Answer

This condition may be caused by fungal infection or long-term radiation exposure, but considering the child’s age, the former is more likely. Suggestions include:

  1. Generally avoid eating irritating food and eat more vegetables and fruits. You can try using ketoconazole cream, which treats skin infections, applying it once in the morning and once in the evening between the nail folds.
  2. If anemia is present, pay attention to iron and Qi supplementation by eating more iron-rich foods.
  3. Deficiency of trace elements may increase the fragility of capillaries, making them more prone to rupture.