few weeks ago after getting the car power washed two scabs on the roof blew through about size of 5 pence

just covered them with duct tape for now

about a inch behind the sunroof

yesterday having a look at the damage seems 4 more scabs are coming through

ive heard this rust is normally shell terminal death no way to fix it

cars due for a mot in 1 week ...

its 16 years old g reg saph and dont really want to lose it

no other rust on the shell and only failed last years mot on a corroded brake pipe

can the rust be cut out any ideas ???