In medicine: 1  Orthomyxovirus, a family of viruses to which influenza belongs. 2  Orthodontics, a specialty of dentistry concerned with the study and treatment of malocclusions. 3  Orthopedic, the study of the musculoskeletal system. 4  Ortho-DOT, a psychedelic drug. 5  Ortho-cept and Ortho Tri-cyclen, kinds of oral contraceptive drug.
How to Stop Your Throat from Hurting. Sore throats can be caused by allergies, excessive talking or yelling, pollution, or respiratory infections. Just as there are numerous causes of a sore throat, there are also many remedies.
Sore throat (pharyngitis) is very common. It is usually caused by an infection in the throat. Soreness in the throat may be the only symptom. In addition, you may also have a hoarse voice, mild cough, high temperature (fever), headache, feel sick, feel tired, and the glands in your neck may swell. It may be painful to swallow.