Hi Chabbra Alpana,
Human brain is composition of a specialized nervous tissue
which transmits information in form of small electrical signals and at times due to post surgical trauma/ scar this kind of problem ensues, though it is not certain that at what frequency an attack of seizure
will appear, so to avoid any untoward situation, such kind of medication is advised.
You can consult a Homoeopathic Physician for an additional therapy whereby with the help of medicines, impact of post surgical trauma could be minimized.
Wish you a speedy recovery to health