Yes, albendazole (Zentel) can typically be repeated, but it is very important to consult your pediatrician first to confirm the correct dosage for your daughter's current weight. Since reinfection is common, it is also highly recommended to treat all family members simultaneously. To help prevent future infections, ensure frequent handwashing, keep everyone's fingernails short, and wash all bedding and clothing in hot water.

Zentel (albendazole) is a highly effective deworming medicine, but it is generally recommended to avoid becoming pregnant for at least one full month after taking it to ensure it is completely out of your system. Because of this, the safest path is to pause trying to conceive this month. I highly recommend speaking with your fertility specialist before you stop taking letrozole, as they can best advise you on how to safely adjust your treatment plan for the next cycle.

For both your 6-year-old (19 kg) and 9-year-old (30 kg), the standard dose of albendazole (Zentel) is a single dose of 400 mg. Zentel liquid typically contains the full 400 mg dose in a single bottle (usually 10 mL or 20 mL, depending on the preparation). This means they would each likely need one full bottle as a single dose. Please check your specific packaging to ensure the volume equals 400 mg, and consult their pediatrician to confirm this treatment plan.

Since antifungal and steroid creams haven't helped, the irritation might be caused by sweat accumulation (intertrigo), a localized skin allergy, or a bacterial infection like erythrasma. To manage this, focus on keeping the area cool and dry. Wear loose-fitting, breathable cotton underwear and gently pat the skin dry after sweating. Avoid harsh soaps or overwashing, which can worsen irritation. Applying a simple, fragrance-free zinc oxide barrier paste can help protect your skin. I highly recommend seeing a dermatologist or healthcare provider to get a precise diagnosis and tailored treatment plan.

Since the albendazole (Zentel) did not help, it is highly likely these patches are not related to worms. A very common and harmless cause in young children is pityriasis alba, a mild form of dry skin or eczema that causes pale patches, often becoming more noticeable after sun exposure. To help them fade, keep her cheeks well-moisturized with a gentle, fragrance-free cream and protect her skin from the sun. I highly recommend having a pediatrician examine her to confirm this and ensure she gets the best gentle care.

For a 10-year-old child weighing 39 kg, the typical dose of Zentel (albendazole) for common worm infections is a single 400 mg dose (usually one tablet or 20 ml of liquid). Zentel can be taken with or without food. However, taking it with a meal, especially one containing a little fat (like milk or a snack), can help the medicine work more effectively and prevents any mild stomach upset. If you are unsure about the specific type of infection, it is always best to consult your pediatrician first.