Thanks for using healthcare magic.
I have gone through your history.
It is very difficult to diagnose a swelling until it is thoroughly examined and investigated SO you should consult surgeon for the same.
Most likely, it should be parotid duct swelling which may occur as a part of parotid gland infection
As it occurs repeatedly, you should consult surgeon to find out the exact cause.
You should avoid alochol use also as it may aggravate your condition.
I hope It may help you.