Sorry you are going thru this, @Nique
The same happened to my husband's hands & feet on Capecitabine/Xeloda ... and the peeling on his feet went thru to the flesh and was quite painful at one time. Make sure you don't PULL off any of the skin tags - or it may rip into the flesh. :(
Maybe Contact your Onc for an urgent review, even over the phone .... reducing the quantity of tabs should help, even in the short term.
Cream that is high in Urea really helped him .. and we got some 'gel slip ons' that he wore too, to keep the soles hydrated - he wore those at night. They were very cooling too. PawPaw ointment helped too.
Our podiatrist (who would tidy up his feet every month) recommended NS21 creams.
They had some 'sample sachets' of each one too, that we grabbed a few & tried on him. They were good.

Check out these other posts re capecitabine side effects:
https://onlinenetwork.bcna.org.au/search?domain=all_content&query=capecitabine&sort=-dateInserted&scope=site&source=communityTake care & all the best xx