Suggest Medication For Discomfort And Pain In Leg Due To Cellulitis

Yes. I have had a cut on my foot from flip flops - inside aspect of L foot below the great toe joint where the flip flop crossed. Infected in June 2014. Swelling, redness, hot - went to clinic - diagnosed cellulitis and was put on Keflex. After course of this, foot not all better. Since then, continous pain in L groin lymph nodes, and as if in the nodes all the way up the leg. Saw MD, xray of foot, nothing but a little arthritis of great toe joint. That is not it. I continue to have a moderate swollen area where that cut was on the foot that still feels irritated to touch, and every day and night mild to mod pain as if in lymph system of that whole left leg and groin especially. Sometimes pain so bad it leaves me feeling nauseous. What do I do - have been to my MD twice about this and she just does not do more.