Weeping Breast

Hello Ladies, I hoping someone can help me.. I finished my Radiation treatment 2 weeks ago today.. I knew to expect that the burns would probably get worse before they got better and that was fine, But I have now developed a horrible rash which has gone over the tio of my burns, all over my breast, and now spread to my other Breast.
 I saw my Breast care nurse yesterday and she is at a loss as to what is causeing it, we changed from Jelonet to something else and stopped the sorbeline (which I don't like anyway), to see if I was having a reaction to that... 
She spoke to my rad onco, he said to try Phenergon and just use solugel, and cortisone cream on the areas that are not broken.
I had an appointment to go back tomorrow but after not sleeping much at all,  and waking with my dressings, nightie, and sheets wet with fluid, then taking 2 phenergons at 6am, changing all my dressings, and finally falling a sleep, I woke again with dressins soaked.. 
I have spoken to my nurse she wants me to come back in this afternoon, but my Onco is in a meeting so have to wait.
My nurse to photos yesterday and says that yes my breast is swollen also.
I cannot stand anything touching me, apart from it weeping and soaking through everything, it feeles like little needles.
I don't know if you can get lymphoedema in your breast can you? 
Has anyone expereinced anything like this?
 I am so tired from not sleeping and starting to feel very nauseas
I hope this all makes sense