Lupus is a chronic autoimmune disease that can have a serious and widespread effect on the body, including the skin, joints, muscles, and other organs. Butterfly rash and other symptoms of lupus are the result of tissue inflammation throughout various parts of the body. butterfly rash is a reddish rash on the face that spreads over the bridge of the nose and across the cheeks, making the shape of a butterfly. A butterfly rash, also called a malar rash or flush, is most commonly associated with systemic lupus erythematosus, or lupus, a chronic autoimmune disease.
Itchy throats are often caused by a combination of post-nasal drip and a dry throat (caused by breathing through your mouth when congested). 1  Therefore, a decongestant medicine -- such as those containing pseudoephedrine -- can clear blocked nasal passages and help you to breathe normally.
Sore throat is usually caused by inflammation (swelling) in the back of the throat (oropharynx) and tonsils (laryngeal lymphoid nodules). Infections can be caused by the streptococcus bacteria (causing strep throat) or viruses.