You have a condition called Preauricular Sinus.
It is a congenital condition and no treatment is needed if asymptomatic.
However, since you are having discharge from the sinuses, it's best to get the surgery done.
Next Steps
The surgery is simple, safe and involves excision of the sinuses. It will give complete and permanent relief of symptoms.
Health Tips
Recurrent infection will not only expose you to repeated medication, but will make the surgery difficult if needed in the future.