Can thick salt water kill the worms in the eyes of furniture bugs?

No, formaldehyde is an organic substance, and the chemical principle of similar miscibility is followed, salt is only an electrolyte, and mixing it into water cannot change the properties of water, while formaldehyde is soluble in water, so you just need to wash it with water.

The kind of cockroach spray that kills insects -- and in the summer it's hot, and some of the bugs run to the shade. >>>More

There are ways to kill maggots:

1. Booby trapping adult insects: >>>More

Upstairs bathroom, due to dampness, will breed pests, many pesticides can treat these insects, but spraying is also a symptom rather than a cure. >>>More

Furniture paint: You find a furniture factory in repainting. Or you go to the building materials supermarket to buy self-spraying paint and spray it yourself. The insect eye on the money-saving wooden door is smoothed and polished with putty. That's it.