Doctor insights on:
What Are The Differences Between Pyrethrin And Permethrin
Lice and Scabies: Pyrethrin is used to treat lice, which are tiny insects that can infest and irritate the scalp (head lice), the pubic area (crabs), or the body. This medication works by paralyzing and killing lice. Permethrin is used to treat scabies ('mites that attach themselves to the skin) in adults and children 2 months of age and older. ...Read moreSee 1 more doctor answer
How do you know if scabies is gone? What's the difference between permethrin itching and scabies itching? Does permethrin cause night itching? Help!
1 oz: Apply to entire body from neck down and leave on overnight. Repeat in one week if necessary. Strip sheets and pillow case in morning and wash linens in hot water to kill mites. Also treat everyone else in house even they are symptomatic. Always check if dog or cat is source. ...Read moreSee 1 more doctor answer
With care: Permethrin acts as a neurotoxin with greater effects on cold-blooded creatures like insects, fish, reptiles than warm- blooded. Overdoses can cause nausea, headaches, muscle weakness, excessive salivation and seizures. It has been classified by the epa as a likely human carcinogen. Thus, use sparingly and not around highly absorbable surfaces like any mucous membranes (nose, eyes, mouth). ...Read more
Permethrin: is usually applied once and repeated in 1-2 weeks. Treatment of family members and decontamination of your home is very important so that repeated doses beyond the two above can be avoided. Although generally regarded as safe for short term use, repeated doses increases concern for toxicity (particularly in the very young or elderly) and can be very irritating to the skin. ...Read more
1-2 weeks: Assuming you have successfully treated the scabies. It will likely take 1-2 weeks for the redness to subside. Topical steroids may help speed this process up. Make sure you wash all clothes, towels, sheets, and blankets following Permethrin treatment to make sure any residual mites are eradicated. ...Read more
New bumps after Rx: Scabies treatments often contain a high percentage of alcohol which can be very drying to the skin. New bumps should not develop unless they are from a hypersensitivity reaction or if the infestation was not completely cleared. An examination of skin scrapings can reveal the difference. ...Read more
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