What should be done if a guinea pig has lice? - briefly
Apply a veterinarian‑approved lice treatment to the guinea pig and isolate it from other pets, then thoroughly clean and disinfect the cage, bedding, and accessories. Monitor the animal for any signs of recurrence and repeat treatment if necessary.
What should be done if a guinea pig has lice? - in detail
If a pet guinea pig shows signs of lice, immediate action is required to prevent worsening of the infestation and to protect other animals.
First, confirm the presence of parasites by examining the fur and skin. Look for tiny, grayish insects moving through the coat, as well as small white or yellowish eggs attached to hair shafts. Excessive scratching, hair loss, and crusty skin also indicate an infestation.
Next, isolate the affected animal from other small mammals. Place the guinea pig in a clean cage with fresh bedding that can be discarded after treatment. Keep the cage in a well‑ventilated area away from other pets.
Treat the infestation with a product specifically labeled for rodents. Apply a few drops of a safe topical insecticide to the base of the neck, following the manufacturer’s dosage instructions. Do not use products intended for cats, dogs, or humans, as they may be toxic. After application, allow the animal to rest undisturbed for at least 30 minutes to ensure absorption.
While the medication works, clean the environment thoroughly. Remove all bedding, toys, and accessories, then wash them in hot water (minimum 60 °C) or replace them entirely. Disinfect the cage with a diluted bleach solution (1 part bleach to 32 parts water), rinse well, and allow it to dry completely before reintroducing the guinea pig.
Schedule a veterinary examination promptly. A veterinarian can confirm the diagnosis, prescribe a more potent oral or injectable treatment if needed, and assess the animal for secondary skin infections or anemia caused by blood loss.
After treatment, monitor the guinea pig daily for at least two weeks. Check for remaining lice, re‑infestation, or adverse reactions such as skin irritation. Repeat the topical application according to the product’s recommended interval, usually after 7–10 days, to break the life cycle.
Prevent future infestations by maintaining strict hygiene. Change bedding weekly, clean cages regularly, and avoid contact with wild rodents or contaminated environments. Quarantine any new small‑animal arrivals for a minimum of three weeks and inspect them for parasites before mixing with existing pets.