There are many different methods of removing silverfish, but some of them can be quite dangerous. It is best to consult a professional. They will be able to identify the source of the problem and then recommend a course of treatment.
If you have tried several remedies and are still having problems, you may want to consider using an insecticide. Insecticides are effective in killing a variety of pests. However, they can be harmful to you and your pets, so it is a good idea to use them only when necessary.
You can purchase a liquid or spray insecticide at a hardware store. These are generally effective in eliminating a silverfish infestation. A liquid insecticide can also be sprayed around the perimeter of your home.
Boric acid is a common household cleaner that is also very effective in killing silverfish. You can find it at your local hardware store or in some pharmacies.
Baits are another method that can be used to kill silverfish. When they eat the bait, they will die. This means that you need to put the bait in the areas where the insects are most likely to feed.
Another effective natural silverfish killer is salt. Silverfish bugs are not able to resist salt. Salt is punitive, but they can still be attracted to the starch in torn paper.
Diatomaceous earth is another natural option that can be used to kill silverfish. Diatomaceous Earth is a fossilized material that comes from the remains of diatoms. The grains of the material have sharp edges and are toxic to silverfish.