Fipronil is a broad-use insecticide that belongs to the phenylpyrazole chemical family. Fipronil is a broad-spectrum insecticide that disrupts the insect central nervous system by blocking GABA-gated chloride channels and glutamate-gated chloride (GluCl) channels, resulting in central nervous system toxicity.ipronil is a slow acting poison. When used as bait, it allows the poisoned insect time to return to the colony or harborage. In cockroaches, the feces and carcass can contain sufficient residual pesticide to kill others in the same nesting site.
By Mayo Clinic Staff. Injury, overuse or conditions causing inflammation involving any of the bones, ligaments or tendons in the foot can cause foot pain. Arthritis is a common cause of foot pain. Injury to the nerves of the feet may result in intense burning pain, numbness or tingling (peripheral neuropathy). Some common causes of foot pain include: Achilles tendinitis.
To reduce inflammation and the resulting swelling and pain, injured tissue needs to be properly treated. The earlier you start treatment, the better. Initial treatment for acute inflammation in the foot or ankle consists of RICE therapy: Rest: Stay off the foot or ankle. Walking may cause further injury. Ice: Apply an ice pack to the injured area, placing a thin towel between the ice and the skin. Use ice for 20 minutes and then wait at least 40 minutes before icing again. Compression: An elastic wrap should be used to control swelling.