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.
Leg swelling related to inflammation. Leg swelling can also be caused by inflammation in leg tissues. Inflammation may be a normal response to injury or disease, or it may be due to rheumatoid arthritis or another inflammatory disorder. You will usually feel some pain with inflammation. Factors that can contribute to inflammation in the leg include: