Ok, there appears to be (or have been?) some sort of water leakage problem in a spare bedroom. We've tossed the (watermarked) mattress, but I think there is a mould problem on the walls. Ok, there's something that looks like a tiny mushroom.
What do I do about this? Bleach?
The walls are white, and brick on one wall and plaster on the other.
I don't know wtf is up with the underlying problem - we had a real thundershower today, and this wall was dry. (There were leaks elsewhere, so the roofer who's visiting will have lots to check out, anyway. )
it's a shit of a problem - need to find out where water is getting in, or you'll never be rid of mould. When we had this, i washed downed wall with bleach, but then it needs to be repainted, as you can still see the marks from the mould. Sounds like yours is a lot smaller though