Steaming off the painted-over-wallpaper in my kitchen has left the
edges of the artexed ceiling in disrepair. The artex has melted off/ is
peeling off in places.

I was going to patch the faulty bits with polyfilla, then emulsion. But
a quicker option may be to patch directly with artex.

Can artex be bought in small pots? I gather it is like thick paint
which can be brushed on...

Bruce

PS: Please don't tell me to remove the whole artex ceiling -- I
actually like the look of 70s artexed ceilings! One day they'll come
back into fashion...