It is estimated that, in the U.S., the quantity of people with allergies is rising, and as many as 30% of adults and 40% of children are affected. You may be one of them, the allergic reactions, like allergic rhinitis, dermatitis, itching, sneezing, etc., will keep you from getting a good night's sleep and make you feel frustrated. In this case, we try to summarize some common allergens and tips to help you avoid them.