I'm not sure what "油孩子" means. If you're referring to a child with overly greasy skin, here's how it can be treated.
For a child with greasy skin, a gentle cleanser can be used to wash the face and body regularly. Choose a cleanser that's mild and suitable for children's sensitive skin. Avoid using products that are too harsh or drying.
Also, diet can play a part. Limit the intake of fried and greasy foods. Encourage the child to have more fruits and vegetables which are rich in vitamins and can help improve skin condition.
If there's a skin condition like seborrheic dermatitis causing the greasiness, a doctor may prescribe a mild corticosteroid cream to reduce inflammation.
