You need to know that GERD
is common in this age group , peaks at around 6 months and more than 80 % are cured of it by the time they celebrate their first birthday. So I hope that answers your first question. It is definitely not going to be lifelong.
Regarding your second question, Junior Lanzol
is an otherwise safe drug and does not alter HCL production in the long run. So that answers your second query.
So continue the medication as your baby is better now. Treating GERD helps a baby in many ways as it associated with co morbid conditions.