Allergies can cause or worsen AD symptoms. Your health care provider may recommend prick or patch skin testing, blood tests, or food challenges to see if allergies are causing itching or rash. Allergens that worsen AD include foods, dust mites, furry animals, allergens in the air, as well as, certain chemicals. Temperature and Humidity Cold weather, heat and sweating may make AD worse. Sweating caused by overheating and high humidity can irritate the skin.
Low humidity causes water to be lost from the skin.
This can lead to dryness and skin irritation. Infectious skin organisms are often present in higher than normal numbers on the skin. In addition, skin that has been scratched or has a rash is more easily infected. Dry Skin Dry skin makes the itching and rash of AD worse. Wind, low humidity, soaps, some skin care products, and washing or bathing without proper moisturizing can cause dry skin.