Allergic rhinitis, also known as hay fever, is a type of inflammation in the nose, which occurs when the immune system overreacts to allergens in the air.

The symptoms of rhinitis include the inflammations of nasal epithelium and exudation of a runny discharge. The fluid from the nose is usually clear. Spells of sneezing and sore throat and palate may also occur. The eyes may be similarly affected. It can be seasonal or perennial, Symptom onset is often within minutes following exposure and they can affect sleep, the ability to work, and the ability to concentrate.

Those whose symptoms are due to pollen typically develop symptoms during specific times of the year. Allergic diseases generally begin in childhood, although they can arise at any age. Development of allergic diseases is associated with an allergic condition due to heredity and to environmental and health factors.

Symptoms that occur shortly after you are exposed to the substance you are allergic to may include:

  • Itchy nose, mouth, eyes, throat, skin, or any area
  • Problems with smell
  • Runny nose
  • Sneezing
  • Watery eyes

Symptoms that may develop later include:

  • Stuffy nose (nasal congestion)
  • Coughing
  • Clogged ears and decreased sense of smell
  • Sore throat
  • Dark circles under the eyes
  • Puffiness under the eyes
  • Fatigue and irritability
  • Headache

Some external factors can trigger or worsen this condition, including:

  • cigarette smoke
  • chemicals
  • cold temperatures
  • humidity
  • wind
  • air pollution
  • hairspray
  • perfumes
  • colognes
  • wood smoke
  • Fumes