It's possible to treat the symptoms of mild allergic rhinitis with over-the-counter medications, such as long-acting, non-sedating antihistamines. If possible, try to reduce exposure to the allergen that triggers the condition. See preventing allergic rhinitis for more information and advice about this.
isobar definition: 1. a line on a map connecting points having equal barometric pressure at a given reference altitude, commonly sea level, over a given period or at a given time 2. any atom that has the same atomic weight (or mass number) as another...
An isobar refers to all of the nuclides of all elements that have a particular atomic mass. For example, helium-6 is one of the many isotopes of helium. The isobars of helium-6 are hydrogen-6, lithium-6, beryllium-6, and boron-6. (Note, hydrogen-6, beryllium-6, and boron-6 are unbelievably short-lived).