I am So sorry you've got this loss of skin @slonimski - I can only imagine how painful it would be.
I would suggest you contact your Radiology/Cancer Dept first thing tomorrow and ask to be seen urgently, as you sure don't want to get an infection. If you aren't able to see them .... try your GP (or try them first) or as a last resort, go to your local hospital Emergency dept. xx
I hope you can get seen first thing tomorrow.
take care & all the best xx