CelebrexÂ® (celecoxib) is a prescription medication frequently used in the treatment of acute pain, arthritis, and painful menstrual periods. It belongs to a class of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs) and works by blocking the action of the COX-2 enzyme. Celebrex is sold in the form of capsules that come in four different strengths, including: 1  Celebrex 50 mg.  Celebrex 100 mg.
The female botfly glues her eggs onto the abdomen of a captured mosquito or other common fly. When the carrier insect lands on a human, the larva, or bot, hatches, burrows into the skin, and positions itself head down to feed, breathing through caudal respiratory spiracles.
There are two groups of flies that do have larval stages that live on or in human skin. One, the human bot fly (Dermatobia hominis, family Oestridae), has large, 1-2 cm (Â½-1 inch) long, larvae that live and feed in the skin. These flies are not found in North America, only in Central and South America.However, there are rare cases of rodent bots infesting humans in California.The other flies, with larvae that feed on humans, are screw worms and blowflies (family Calliphoridae). The larvae of these flies feed on dead or decaying tissue, and less commonly living tissue.owever, there are rare cases of rodent bots infesting humans in California. The other flies, with larvae that feed on humans, are screw worms and blowflies (family Calliphoridae). The larvae of these flies feed on dead or decaying tissue, and less commonly living tissue.