It depends on your ability. First of all, you can buy her some red dates and Chinese wolfberry, and usually make tea for her. Secondly, prepare a daily nut for her, which can supplement nutrition and serve as a snack. If you have enough money, you can buy some supplements such as donkey-hide gelatin, bird's nest and human body, which is very good for girls. Finally, you can give her a cup of honey every night to let her sleep well.