Hello. Thank you for asking at HCM. From your history it seems your daughter has allergic respiratory disease. However, I would definitely like to know for what condition she has been taking medicines since 5 months of age and how it was concluded that her liver is weak. Personally I agree with your child specialist and would recommend Montek LC kid for her allergy symptoms. Montek LC kid contains two drugs within - montelukast and levocetirizine. Both are considered usually safe for long term use in children. Sometimes child may complaint of sedation due to levocetirizine component. If you notice any behavior change or dizziness, please consult your pediatrician but they are rarely seen in practice. However, it is important to identify what she is allergic to. So I would suggest you to consult an Allergist who will suggest her allergy testing and then will advise you appropriate measures to avoid the allergens. As general measures, I would suggest her to avoid dusts, smoke & air pollution as much as possible. Hope this will help you. Wish your daughter the best of the health. Regards.