Thanks for query.
It seems that you are having chronic lymphadenitis
in your armpit.
As there is recurrence you should find out the reason.
See that any chronic infection in your hand,arm,nails etc,from there infection can travel in armpit.
Go for your breast examination for any lump,infection,pain.
Any lesion in the breast can cause this problem
So consult your doctor and go for thorough examination.
Ok and bye.