If you have asthma, the inside walls of the airways in your lungs can become inflamed and swollen. In addition, membranes in your airway linings may secrete excess mucus.
Acid reflux occurs when the sphincter muscle at the lower end of your esophagus relaxes at the wrong time, allowing stomach acid to back up into your esophagus.
Arthritis means inflammation or swelling of one or more joints. It describes more than 100 conditions that affect the joints, tissues around the joint, and other connective tissues.
Traveler's diarrhea is the most common illness that affects international travelers. It's usually related to a bacterial infection from consuming contaminated food or water.
Irritable bowel syndrome (IBS) is a "disorder of gut-brain interaction" characterized by a group of symptoms that commonly include abdominal pain, abdominal bloating and changes in the consistency of bowel movements.