Hello dear , hi Welcome to Healthcaremagic.com I have evaluated your query for your friend . * All symptoms are serious only if not taken care properly . * If confirmed case of dust allergy , and ruled out other causes , guidelines for her better outcome - Allow her to maintain hydration with plenty of liquids . - Consumption of balanced nutritious diet . - Regular walking in fresh air , deep breathing exercises , YOGA . - Avoid smoking , alcohol if using . - Avoid exposure to dust , pollen containing atmosphere ; if needed use triple layer face mask wisely . - Avoid stress , anxiety . - Have regular sound sleep of 8 hours . * Regular check up with your physician time to time . Hope this will help her for sure . Wishing her fine recovery . Regards .