Can Betamethasone Dipropionate Cream Treat Pubic Lice Effectively? - Pharmacology

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Pubic lice treatment?


Hello Dr.
Hou: I visited a dermatologist who diagnosed me with pubic lice.
The clinic prescribed a cream: Betamethasone ointment 0.83mg, which I have already finished, but the lice condition has not improved.
Later, I bought "Bepanthen," which contains Betamethasone Dipropionate 0.64mg and Gentamicin (as Sulfate) 1mg (Potency).
I'm unsure if this cream is suitable for use, as the pharmacist mentioned it contains steroids, so I'm not certain if it is appropriate to use.

Fred, 20~29 year old female. Ask Date: 2007/12/01

Dr. Hou Fangmin reply Pharmacology


Hello: The medication for pubic lice is generally an antifungal cream, while the medication you are using, Betamethasone Dipropionate 0.64mg and Gentamicin (as Sulfate) 1mg (Potency), is a steroid and an antibiotic.
You may want to consult a gynecologist to check for a possible Candida infection and get a prescription for an antifungal cream.
Is this response okay? Wishing you good health.
Goodbye.

Reply Date: 2007/12/01

More Info


Betamethasone Dipropionate cream is a potent topical corticosteroid primarily used to treat inflammatory skin conditions such as eczema, dermatitis, and psoriasis. However, it is not an effective treatment for pubic lice (Pthirus pubis), commonly known as crabs. Pubic lice are parasitic insects that infest the coarse hair of the genital area, and their treatment typically involves insecticidal shampoos or lotions specifically designed to kill lice and their eggs.

The confusion may arise from the fact that Betamethasone can help alleviate itching and inflammation associated with skin irritations, but it does not address the underlying infestation of lice. In fact, using a corticosteroid like Betamethasone on an active lice infestation may mask symptoms such as itching without resolving the actual problem, potentially leading to a delay in appropriate treatment.

For effective treatment of pubic lice, over-the-counter products containing permethrin or pyrethrin are recommended. These insecticides work by attacking the nervous system of the lice, leading to their death. It is crucial to follow the instructions on the product label carefully, which usually involves applying the treatment to the affected area and leaving it on for a specified period before rinsing it off. Additionally, it is important to wash all clothing, bedding, and towels in hot water to eliminate any lice or eggs that may be present.

If you have already used Betamethasone and are still experiencing symptoms of pubic lice, it is advisable to consult your healthcare provider for a proper diagnosis and treatment plan. They may prescribe a stronger topical treatment or recommend alternative methods to ensure the lice are effectively eradicated.

In summary, while Betamethasone Dipropionate cream can help with inflammation and itching, it is not suitable for treating pubic lice. Instead, look for specific lice treatments that contain insecticides designed to eliminate the infestation. If symptoms persist after using the appropriate treatment, seek medical advice for further evaluation and management.

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