Awful Oozing and Weeping

I am a new user of Efudex and my reaction, compared to reading other users' experiences, was pretty normal. I took myself to see my GP about 3 weeks into the treatment. She took one look at my chest and told me to stop the treatment and prescribed me a steroid and antibiotic cream to “calm it down.”
The cream did not really help, so I stopped using it after about 5 days, but I now seem to be stuck with a very tight, crusty chest that oozes at night. This has been going on for about a week now and is getting me down as, each day, it doesn't seem to be improving.
Has anyone else got stuck at this stage? I have also read that the treatment should be continued even when this stage is reached. I am very confused.