If an area of your neck is itchy and red, it is possible that you have a rash. According to the Mayo Clinic, rashes such as hives or poison ivy may clear up on their own, while rashes from scabies and dermatitis may require prescription medication.

Ulcers, sores on the lining of the stomach, esophagus and intestines, can be caused by a bacterial infection or anti-inflammatory medicines such as aspirin, ibuprofen, naproxen and ketoprofen. Stomach acids and other stomach juices can burn the lining of the digestive tract, further irritating the ulcers.

The human immunodeficiency virus -- HIV -- causes acquired immunodeficiency syndrome, or AIDS. You can be infected with HIV for many years and show few if any symptoms before the development of AIDS. However, people who are HIV-infected can transmit the virus to other people.

You are probably familiar with the gassy, abdominal pain referred to as bloating. You may even know that acid reflux is a result of some of the acidic contents of the stomach leaking back up into the esophagus, where it burns or irritates the lining.

Discover the various causes of arm and leg pain, including syringomyelia, peripheral arterial disease, and fibromyalgia. Learn how to relieve chronic pain and find effective treatment options.

Fungal pneumonia is a type of lung infection caused by fungi. Though this condition is uncommon in most people, those with compromised immune systems due to certain types of infection, such as HIV, are at an increased risk of developing fungal pneumonia.

Vehicles crowding roadways, power plants pumping smoke and chemicals from consumer products have many people thinking about air pollution and how it affects the planet. Air pollution is a complicated problem with many causes and effects and few solutions.

Bactrim DS is a medication in a class of drugs known as antibiotics. Antibiotics are used to kill foreign bacteria in the body.

Depakote is the registered brand of the generic drug divalproex sodium. This drug -- manufactured by Abbott Laboratories -- is commonly used as a mood stabilizer for patients suffering from bipolar disorder but may also be prescribed for migraines and epilepsy.

While running a marathon or long-distance event, your body first will burn through your stored carbohydrates and then burn stored body fat to maintain the energy you'll need.

Few allergies trigger swollen tonsils as a sole symptom. However, if you have pollen, fiber, food or other allergies then swollen tonsils might occur alongside other familiar symptoms. In some cases this will subside after a few hours.

Gaining weight during pregnancy is essential for your baby’s health and development. Staying in shape while pregnant should not be used to prevent weight gain.