Relevant part
Stellate scale is also a known pest of Schefflera plants. Wash foliage with warm soapy water, try not to get any in the pot. You may have to treat multiple times. Imdacloprid (Bonide Systemic) should also be effective as it’s considered a soft bodied scale.
Even though there might be other possibilities, checking the roots is a good move. If the roots are okay, that’s great news and you’re on the safe side. If you discover rot, you can just cut off the bad parts and the repot the plant. That causes severe stress, so it might take a while to recover, but it’s the only way to help with root rot, as otherwise it will only spread, killing the plant in the long term.
I have three spider plants that used to take turns spending a month in the windowless bathroom. They’re all fine. There was at least some sunlight coming in from the surrounding rooms though.
Thank you. People with chronic headaches or migraines are the ones that should not follow this advice, as painkiller-induced headaches are a thing and only make matters worse. Just see a doc.
As for occasional headaches: It’s going to be a lot easier fixing the issue that lead to a headache once you don’t suffer.
Same in German (Seeigel). Though I wondered what an “urchin” is since I learned the word. So still a TIL.