Causes

• Throat allergy symptoms are typically caused by food and airborne particle allergies. Throat allergies are common for people who are allergic to dairy products and pollen.
  
  

Symptoms

• The most common symptoms of a throat allergy are a sore throat, scratchy throat and excessive mucus in the back of the throat. Some people may experience hives or a rash in the throat as well.
  
  

Prevention

• To prevent throat allergies, a person should identify what substances cause the allergy and avoid them. If the allergy is airborne, using an air purification system in the home can help.
  
  

Treatment

• The most common treatment for signs and symptoms of throat allergies is to take an over-the-counter antihistamine, which blocks the body from producing histamine. The most common drug used is diphenhydramine or Benadryl.
  
  

Complications

• If throat allergies are not properly addressed, they can lead to an infection in the throat, chest and head. Any infections need to be treated with prescription antibiotics.