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SINUSITIS (SINUS INFECTION) Sinusitis is common. But many people who have it use treatments that aren't likely to help. So before you run to the drugstore, you’ll want to be sure you know how to handle this condition. The sinuses are small cavities in the skull that are normally filled with air. They make mucus, which helps keep the nasal passages clear of allergens and pollutants. Sinusitis is an inflammation of the tissue that lines these cavities. In some cases, this swelling blocks off the sinuses, trapping mucus and air inside them. This can cause pain and pressure. Sometimes, it can lead to a bacterial infection. Acute vs. Chronic Acute sinusitis lasts up to 4 weeks. Chronic sinusitis lasts at least several weeks and can linger for years. Its cause can be hard to pin down -- and hard to treat. Sinusitis might start because of a cold or allergies. Fungus can cause it for people who have weak immune systems. Sometimes, chronic sinusitis is due...

Systemic means affecting the entire body, rather than a single organ or body part. For example, systemic disorders, such as   high blood pressure , or systemic diseases, such as the  flu , affect the entire body. An infection that is in the bloodstream is called a systemic infection. An infection that affects only one body part or organ is called a localized infection.

Acute Upper Respiratory Infection (URI) An acute URI is a contagious infection of your upper respiratory tract. Your upper respiratory tract includes the nose, throat, pharynx, larynx, and bronchi. Without a doubt, the common cold is the most well-known URI. Other types of URIs include sinusitis, pharyngitis, epiglottitis, and tracheobronchitis. Influenza, on the other hand, isn’t an URI because it’s a systemic illness. Types of acute upper respiratory infection: 1.        Common Cold 2.        Sinusitis - inflammation of the sinuses. 3.        Epiglottitis - inflammation of the epiglottis, the upper part of your trachea. It protects the airway from foreign particles that could get into the lungs. Swelling of the epiglottis is dangerous because it can block the flow of air into the trachea. 4.        Laryngitis - inflammation of the larynx or voice...

Pneumonia  is an  inflammatory  condition of the  lung  affecting primarily the small air sacs known as  alveoli . [4] [13]  Typically symptoms include some combination of  productive  or dry  cough ,  chest pain ,  fever , and  trouble breathing . [2]  Severity is variable. [2] Pneumonia is usually caused by infection with  viruses  or  bacteria  and less commonly by other  microorganisms , certain  medications  and conditions such as  autoimmune diseases . [4] [5]  Risk factors include  cystic fibrosis ,  chronic obstructive pulmonary disease  (COPD),  asthma ,  diabetes ,  heart failure , a history of  smoking , a poor ability to cough such as following a  stroke , and a  weak immune system . [6]  Diagnosis is often based on the symptoms and  physical examination . [7]   Chest X-ray , blood tests, and...

A cough that lasts eight weeks or more is called a chronic cough. Even chronic coughs often have a treatable cause. They can result from conditions like postnasal drip or allergies. Only rarely are they a symptom of cancer or other potentially life-threatening lung conditions. A chronic cough can have a big impact on your life, though. It can keep you awake at night and distract you from work and your social life. That’s why you should have your doctor check out any cough that lasts for more than three weeks. Causes of chronic cough The most common causes of a chronic cough are: postnasal drip asthma , especially cough-variant asthma, which causes a cough as the main symptom acid reflux or  gastroesophageal reflux disease (GERD) chronic bronchitis  or other forms of chronic obstructive pulmonary disease (COPD) infections, such as  pneumonia  or  acute bronchitis ACE inhibitors , which are medications used to treat high blood pressure smoki...

Is it possible to take too much vitamin C? Answer From  Katherine Zeratsky, R.D., L.D. While vitamin C (ascorbic acid) is an essential nutrient, it's possible to have too much of it. Vitamin C is a water-soluble vitamin that supports normal growth and development and helps your body absorb iron. Because your body doesn't produce or store vitamin C, it's important to include vitamin C in your diet. For most people, an orange or a cup of strawberries, chopped red pepper, or broccoli provides enough vitamin C for the day. For adults, the recommended daily amount for vitamin C is 65 to 90 milligrams (mg) a day, and the upper limit is 2,000 mg a day. Although too much dietary vitamin C is unlikely to be harmful, megadoses of vitamin C supplements might cause: Diarrhea Nausea Vomiting Heartburn Abdominal cramps Headache Insomnia Remember, for most people, a healthy diet provides an adequate amount of vitamin C. Link:  https://www.mayoclinic.org/healthy...