Stainless Steel and the passive layer Steel is an alloy of iron and carbon. Contrary to carbon steel, the presence of a minimum of 10.5 % chromium in the stainless steel gives it the property of corrosion resistance. Indeed, on contact with oxygen, a chromium oxide layer is formed on the surface of the material.
Sinus Drainage & Stomach Problems. One of the primary results of sinus congestion is drainage. Sinus drainage is expelled in two basic ways: through the nose and the back of the throat. When sinus drainage is expelled in back of the throat, it is referred to as postnasal drip and can cause stomach discomfort.
Cough, Drainage or pus, Ear ache and Sore throat. WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms cough, drainage or pus, ear ache and sore throat including Viral pharyngitis, Common cold, and Bronchitis. There are 73 conditions associated with cough, drainage or pus, ear ache and sore throat. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.