Hi Im new! I have some rust showing through and cracking the plaster on an internal corner. The metal beading is rusting. Can I fix this myself? I have searched the Internet and the advice I have found is as follows... Remove old plaster that's flaking off back to the metal. Treat the metal with a rust converter (not sure which one?), re-patch the plaster, sand down and repaint. Is that it or is there anything else I should consider? And is this something I can do myself. I don't really want to get in a specialist if I can do it myself I've attached a photo Would really appreciate any advice anyone may have.