Dear Doctor, An Armpit Gland Under My Left Under Arm

dear doctor,
An armpit gland under my left under arm has been enlarged for 11 years. I have visited so many physicians.Different doctors giving different medicines. but it is as it is even after 11 years. now I am 27 years old and recently married having no issue yet. If I press The gland I feel pain I want to be cured from this enlarged gland.Doctor could not collect fluid from it because it is small in size and moves. others reports are normal. so the doctors suggested no treatment is required i shall be grateful if you kindly tell me the solution.
thanking from Arpita Roy