What does yours look like?
There is not much to do, check inguinal lymph nodes, your pubic bone, if it’s all clear, then gentle massage with heat could help or aggravate the condition. If it doesn’t work rest is the only option. Castor oil packs could help overall lymph flow , and in any case, they won’t hurt.
I had what I thought was weird lymph build up but to this day I still don’t know what it was / is. It is not what you have though, 100 % sure.