What to Do If You Have Pubic Lice: Treatment and Prevention Tips

What should I do if I have pubic lice?

I have been experiencing persistent itching in my genital area for about 1-2 weeks.
Today, while taking a shower, I discovered that I have contracted pubic lice.
Therefore, I immediately shaved off all my pubic hair.
Do I still need to apply medication or undergo treatment? Additionally, my child, who is currently 16 months old, uses the same washing machine as I do (although we wash our clothes separately).
Is there a risk of transmission? Thank you!

Yi, 30~39 year old female. Ask Date: 2004/01/07

Dr. Liu Jianting reply Urology

Oh my gosh! This is really concerning.
Of course, you need to apply the treatment medication, but you should also find out who transmitted it to you, as that person needs treatment too! If the baby had close contact with you, they should definitely be checked as well.
See a doctor and ask for advice on how to handle this situation, quickly!

Reply Date: 2004/01/07

More Info

If you suspect that you have pubic lice (Pthirus pubis), also known as crab lice, it's important to take appropriate steps for treatment and prevention. Pubic lice are small parasitic insects that infest the hair in the genital area, and they can cause significant itching and discomfort. Here’s a comprehensive guide on what to do if you have pubic lice, along with treatment and prevention tips.

Treatment
1. Over-the-Counter Medications: The first line of treatment for pubic lice is typically over-the-counter topical insecticides. Products containing permethrin (such as Nix) or pyrethrins (such as Rid) are commonly recommended. These treatments are applied directly to the affected area and should be left on for the recommended duration before rinsing off.

2. Prescription Treatments: If over-the-counter options do not work, or if the infestation is severe, a healthcare provider may prescribe stronger medications, such as malathion lotion or ivermectin. These treatments are effective in killing lice and their eggs.

3. Follow-Up: After treatment, it’s important to check for any remaining lice or nits (lice eggs) after about 7-10 days. If you still see lice, you may need to repeat the treatment.

4. Personal Hygiene: In addition to treating the affected area, it’s crucial to maintain good personal hygiene. Wash all clothing, bed linens, and towels in hot water and dry them on a hot cycle to kill any lice or eggs that may be present. Items that cannot be washed can be sealed in a plastic bag for at least two weeks to ensure any lice die off.

5. Shaving: While you mentioned that you have shaved your pubic hair, this alone does not eliminate the lice. Treatment with insecticides is still necessary, as lice can cling to the skin and may still be present even after shaving.

Prevention
1. Avoid Close Contact: Pubic lice are typically spread through close physical contact, often during sexual activity. To prevent transmission, avoid intimate contact until the infestation has been fully treated.

2. Inform Partners: It’s important to inform any sexual partners about the infestation so they can also seek treatment. This helps prevent reinfestation and further spread.

3. Avoid Sharing Personal Items: Avoid sharing towels, clothing, or bedding with others until the infestation is resolved. While lice do not survive long off the human body, it’s best to err on the side of caution.

4. Child Safety: Regarding your 16-month-old child, while pubic lice are primarily transmitted through sexual contact, it is theoretically possible for lice to spread through shared clothing or bedding. Since you mentioned using the same washing machine, ensure that all items are washed thoroughly. It’s advisable to monitor your child for any signs of itching or discomfort and consult a pediatrician if you have concerns.

Conclusion
In summary, if you have pubic lice, immediate treatment with appropriate insecticides is essential. Shaving alone is not sufficient to eliminate the infestation. Ensure that you wash all personal items and inform any partners. For your child, while the risk of transmission is low, maintaining good hygiene practices is important. If you have any further concerns or if symptoms persist, consult a healthcare professional for personalized advice and treatment options.

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How to manage pubic lice?

Dr. Jiang Zheen reply Dermatology
After shaving, simply apply the medication.