It is better to not apply lip balm 24×7 as it may cause irritant dermatitis.
Here is an article to hydrate lips the natural way, give it a read.
https://www.practo.com/healthfeed/most-affordable-skin-care-mantra-for-naturally-visible-plump-skin-45373/post
If you wish to have any product recommendations for the same, kindly consult online or via inbox message.
Next Steps
consult online for product recommendations
Health Tips
avoid using tinted or flavoured lip balms, do not use lip scrubs (lips are not same as skin), hydrate the right way