A is a known antioxidant and can assist the human body in the healing process. Vitamin A is stored in the liver and fat cells of the human body and can reach toxic levels. DO NOT take more than the recommended dosage of Vitamin A.Up to one-third of older people can no longer absorb Vitamin B from their food. Vitamin B is needed to form red blood cells and keep nerves healthy. Talk to your Allergy and Immunology resources store for advice. Air purifiers in the household can not only filter dander, but other allergens that may worsen allergic symptoms. Consider getting a purifier for the bedroom first and then other commonly used rooms from your home. Washing a pet too can lessen allergens. The process in itself can wash away dander and other protein found from pets. Also, pet stores may have shampoos specifically used to treat allergens. Like treating regular allergies, you can also take over-the-counter or prescribed drugs. Antihistamines can block leukotrienes, which causes inflammation and other symptoms of allergies. America, states that allergy is the 3rd most common chronic illness among children under 18. Children have a high prevalence of environmental allergies especially outdoor allergies with 40% of children stating that allergies limit their activities. Allergic rhinitis is a risk factor for snoring and obstructive sleep apnea among children, factors that have been linked with poor performance in school. Allergy medications are available to aid in sleeping but may have various side effects such as a person becoming fatigue or drowsy during the day.