hello and welcome to HCM forum,
according to the history presented by you it seems you have a slight hormonal
imbalance, which is responsible for facial hair growth, specially over the chin area where you are planning to take laser treatment
, therefore these medicines have been prescribed for you.
medication prescribed to you is correct and will take care of your hair as well as skin texture, do not worry these medicines have been prescribed by a very experienced practitioner, therefore remember to take these medicines as prescribed.
also ,remember not to use substitutes of these medicines, take them as prescribed, and follow ups with your doctor are important,
i wish you good health,