Antihistamines are drugs which treat allergic rhinitis and other allergies. Liver problems or allergic reactions may occur. It may also reduce symptoms of allergic rhinitis. Some medications can trigger allergic or pseudoallergic reactions. Ciclesonide is a glucocorticoid used to treat asthma and allergic rhinitis. Ragweed pollen is notorious for causing allergic reactions in humans, specifically allergic rhinitis. This therapy is particularly useful for people with allergic rhinitis or asthma. Sleep problems are common in people with allergic rhinitis. Atopic eczema is often associated with genetic defects in genes that control allergic responses. Basophils appear in many specific kinds of inflammatory reactions, particularly those that cause allergic symptoms. Histamines are proteins associated with many allergic reactions. Acute conditions such as sunburn, dehydration, heat stroke and allergic reactions are also common. They are overgrowths of the mucosa that frequently accompany allergic rhinitis. Cockroaches are linked with allergic reactions in humans. Eosinophils are also the predominant inflammatory cells in allergic reactions.