Damp stains can be painted over with a suitable paint like Ronseal's 6 Year Anti Mould Paint, so long as the damp has dried and the source has been treated.
But while Em's tip will help prevent any annoying paint drips, it doesn't help when it comes to another big downsides of using paint indoors - the smell.
One of the main reasons paint smells is because of the VOCs (volatile organic compounds) - chemicals that evaporate from the paint into the air.
"Simply pour several tablespoons into bowls or plates and leave these around the room overnight to absorb the smell," Ronseal paint expert Jimmy Englezos suggested.
They're often used in paint to help with a smooth application and reduce drying times, but the majority of interior paints these days have a 'low' or 'minimal' VOC.
