Which of the following diagnostic tests is commonly used to identify potential allergens in cases of suspected allergic contact dermatitis, a type of eczema?

Explanation: Air pollution can exacerbate eczema symptoms in some individuals by increasing skin sensitivity and inflammation.

Incorrect choices: a. Low humidity can actually worsen eczema symptoms for some individuals, as dry air can lead to skin dryness and irritation.

b. Exposure to pet dander may trigger allergies in some individuals, but it is not a direct cause of eczema aggravation for everyone.

d. Use of hypoallergenic fabrics is often recommended for individuals with eczema to minimize skin irritation from clothing.

Explanation: Indoor heating can lead to decreased humidity levels, which may cause the skin to dry out and worsen eczema symptoms.

Incorrect choices: a. "Dairy products" - While some individuals with eczema may have food sensitivities, dairy products are not a universal trigger for all individuals with the condition.

b. "Fresh fruits and vegetables" - Fresh fruits and vegetables are generally considered healthy and are not known to be common triggers for eczema flare-ups.

d. "Daily exercise routine" - Regular exercise is beneficial for overall health, and there is no direct association between exercise and eczema flare-ups.