Please tell me how to use La Roche-Posay Cica Balm B5+ effectively.

I think I have combination skin,

I bought La Roche-Posay Cica Balm B5+, which is famous as a regenerating cream? Or a barrier cream?

By any chance, how long and for how long do you think it takes to see results? Please let me know if you've used it.

Especially these days, perhaps because it's winter, my skin feels like it lacks moisture deep down even after applying a moisturizer in the morning. Please let me know how to use this regenerating cream effectively.

I apply this amount at night these days, but how much regenerating cream do others use?