Asthma is an immune-related disorder that results in narrowing of the airways when a susceptible person encounters certain environmental stimuli such as pollen and dust. Air flow through the windpipes to and from the lungs is therefore restricted and normal oxygenation of the blood is subsequently affected. Although the condition is commonly referred to as wheezing, it is important to understand that wheezing is the abnormal breathing sound heard in asthmatics. It is a symptom. Wheezing can occur in other respiratory conditions as well. The constriction of the airways is usually reversible but causes great difficulty in breathing at the time of the asthma attack. If left untreated, severe asthma can cause respiratory and cardiac arrest followed by death.
Appendix pain is any extreme discomfort or tenderness associated with some disease of the appendix, the small outpouching from the cenum of the large intestine. Anatomically, it is more correctly known as the cecal appendix or vermiform appendix. Tenderness or pain associated with the appendix is a symptom due to a disease. It is difficult for any person to conclusively in a specific region of the abdomen as being appendix pain. Other symptoms accompanying the pain must be noted and diagnostic investigations need to be conducted in order to confirm that the pain is really originating from the appendix. Remember that the abdomen is packed with various organs and tissues, all of which lie closely to each other.
Tinea nigra is a skin fungal infection where there are dark brown to black spots mainly on the hands (palms) and feet (soles). It can be caused by uncommon skin fungi known as dermatophytes and these fungi only consume the outermost layers of the skin. Unlike with other common skin fungi, tinea nigra is not typically itchy. The word tinea refers to dermatomycosis – superficial dermatophyte skin infection. Other tine infections like those on the scalp (tinea capitis), feet (tinea pedis) and groin (tinea cruris) tend to present with the typical ring-like lesion and is often referred to as ringworm.