The silverfish does not bite humans, but it is not unknown for them to eat and destroy valuable possessions in the home. They will also contaminate stored foods.
Silverfish can be found in damp, dark, warm areas. These areas include the bathroom, attic, basement, or sinks. If you see signs of silverfish, it is important to take steps to prevent the spread of the infestation.
Using dehumidifiers or increasing ventilation can help. You can also apply naphthalene balls strategically around the house to discourage the insects from settling in.
If you have an infestation, you may be able to kill them with an aerosol. These sprays come in long tubes, and you can use them to target holes or cracks. However, keep in mind that they should not be applied to carpeting or upholstery.
One effective method to repel silverfish is to mix a citrus essential oil with water and spray it on the affected area. Lavender can be used as well.
Boric acid is another alternative. This acid can be sprayed onto areas where the silverfish are known to live, but should be kept out of children and pets. It is toxic if it is ingested, and can cause serious health problems.
Other ways to control the infestation are to put cedar shavings into the infested areas. There are also products that contain Pyrethrin, which can be sprayed on the area. But these can be harmful if inhaled.
Getting rid of the infestation is not always easy. Silverfish are nocturnal, and can hide under clutter or in inaccessible places.