Hello friend,
No right treatment methods in the world can increase your height from 5 8'' to 5 11'' or as the individual desires.
If at all a drug is to be administered to improve the height it will be hormones like
growth hormone. It is not advisable to take such hormones to increase the height because that will create other problems because it is against nature.
Your height is determined by your genetics. That means factors contributed by your parents.
Just like you cannot change your parents any more you cannot change your genetics.
So your questions appear silly very much possible for a boy of your age.
If your Homoeopathic doctor has given you a combination patent drug, do not call it a homoeopathic remedy. It is not a true Homoeopathic remedy.
A Homoeopathic remedy can cure you if your height reduction is the result of some diseases.
Therefore please do not rely on the drug you take. It may contain some biocombination drugs like calcium compounds and it may help you slightly.
You can remain healthy or can improve your health through Homoeopathy but Homoeopathy cannot make you tall as you fix your destination like 5 11'' etc.
With best wishes,
Dr C. J. Varghese
Homoeopath