Plugged up lymph node...how to unclog?

I have been skin brushing for about 2 weeks.  I missed the last couple of days, and started up again this morning, really heavy on my thighs and buttocks where the cellulite is worst.  This afternoon I've noticed that I have a walnut sized lump in my groin that is fairly sore.  Is this a plugged up lymph node from the skin brushing?  Does anyone have any suggestions for how to unclog this lymph node?

I'm actually hoping that this is a lymph node, as that would prove that the skin brushing is moving the toxins out from my aweful cellulite.  So, this is good news, but I would like to clean out this node!

Thanks in advance!