Gross stuff spreading around my kitchen! Help!

i would point it out, engage their help, get a mask (b&q or boots should have them), don rubber gloves, remove stuff from the cupboard, wipe the packets all down with a vingary cloth (chucking anything open-like cereal bags not closed shut- or unwashable).

then i'd put the packages in a clean spot to dry (like on a towel in another room), and scrub the cupboard with with soapy water/washing up liquid, then wipe down with vinegar, and dunk my scrubbing device in the vinegar too. then i'd let it dry and put stuff back, then wipe the bit of mouldy packet touched surface (where you put the cupboard stuff when you took it out, before it went on the towel).

i'd not use bleach cos while its probably a bit more effective, i can't breathe from the smell of it.

i would also take a shower afterwards incase and wash my clothes incase i got contaminated with spores and ended up breathing them in off my clothes all day.

HCJ's advice sounds great, but, question: Does vinegar kill mold spores by just wiping the area down? I thought you had to let it sit on the affected area until dry.

I know tea tree oil works, diluted 1 teaspoon per cup of water and sprayed on. It smells pretty strong but the smell goes away pretty fast. I like tea tree oil for pretty much everything though...

bleach smells disgusting and bothers some people a lot (I have asthma too) but it is cheap, and you only need a very small amount diluted in water to kill bacteria and molds, a small enough amount that you really can hardly smell it. If the bleach smell is STRONG then you are using too much bleach.

Whatever you do, wet it down by spraying before wiping it up. Dry wiping will just scatter clouds of mold spores into the air and they will float there for a VERY long time.