Can untreated 4+ Dermatophagoides farinae (dust mite) be acceptable?

A positive result of four plus (+) for Dermatophagoides farinae typically indicates a strong positive reaction in allergy testing. Generally, a strong positive result for dust mite allergy should not be left untreated. The detailed explanation is as follows:

A strong positive reaction to dust mites may lead to obvious allergic responses in individuals, such as sneezing, runny nose, skin itching, redness and swelling, wheezing, and difficulty breathing. It can even trigger allergic diseases like allergic rhinitis, asthma, and urticaria. Therefore, leaving it untreated is not advisable. These symptoms not only affect the individual's quality of life but may also cause long-term adverse effects on overall health. If symptoms are mild and manageable, treatment through lifestyle adjustments under medical guidance may be appropriate. However, if symptoms become severe or significantly interfere with daily life, prompt medical attention is necessary, and treatment should be conducted according to a physician’s recommendations.

In daily life, it is recommended to take preventive measures such as maintaining indoor cleanliness, frequently ventilating rooms, and regularly sun-drying bedding, all of which help reduce the growth and spread of dust mites.