Fleas have remarkable survival abilities, but it is highly unlikely for them to survive a thorough washing and drying process. Both the washer and dryer expose the fabric to water, detergent, and high temperatures, which are generally effective in killing fleas and their eggs. However, there are a few possibilities to consider in your situation:
Infestation source: If you suspect fleas are originating from the comforter, it is crucial to examine other areas in your home for potential flea sources. Fleas can infest carpets, upholstery, pet bedding, or other areas where pets spend time. Treating these areas along with washing the comforter will help eliminate the infestation.
Hidden areas: Fleas are agile and can hide in small crevices or folds of fabric. Ensure that you thoroughly inspect the comforter for any signs of fleas, including live fleas, eggs, or droppings. Pay close attention to seams, folds, or any damaged areas where fleas might find refuge.
Re-infestation: Even if you have successfully eliminated the fleas from the comforter, new fleas may still be entering your living space from an external source, such as pets or outdoor environments. It's important to address the overall flea problem by treating pets, using flea control products in your home, and taking preventive measures.
If you continue to experience flea bites after washing the comforter and taking necessary precautions, it might be worth consulting a professional pest control service. They can conduct a thorough inspection of your home, identify the source of the infestation, and provide appropriate treatment recommendations to resolve the issue effectively.