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.
What are the causes and symptoms. Plantar fasciaâthe band of connective tissue on the bottom of your foot that stretches from the heel to the ball of your footâsupports your footâs arch. If this tissue becomes inflamed, youâll generally feel the pain in your heel. Eventually, hook-shaped calcium deposits, also known as bone or heel spurs, may form on your heel bone and cause further pain. Structural issues with the arch of your foot can lead to this cycle of inflammation, spur growth, and pain.