Lymph Node Removal

Right I need advice I’ll give some background info. 

I had a lump in right breast last December.  Saw a consultant and has lots of tests.  Biopsy then the 2 we ek wAit ivermectin Xmas holidays which Was a nightmare. 

Consultant said it’s a benign lump which is harmless. Pain is lymph nodes they’ll go away. Eventually all settled. In April I was admitted in hospital as pain was bad and I kept getting temperatures.  Soon settled but now in July lymph nodes have swollen so bad. Just seen consultant. Said sorry we need to take lump out. Lymph nodes need to be out then we send to rest for cancer.  Any advice ?  Awaiting surgeon to contact me and haematologist. I’m so confused with everything and so much pain.  Sharp and continues.  Any advice on pain.  Using bio freeze on breast and under arm.  Thank you.