From the article: Can Allergy Medicines Really Stop Working?
It is quite common for people with allergies to notice that their allergy medicines stop working after a period of time. Many people frequently need to change their allergy medicines, in some cases multiple times a year, in order to find relief.
The reasons behind why allergy medicines stop working aren't completely clear -- although the most likely reason is that a person's allergy symptoms either change or worsen, and their allergy medicine no longer provides relief for their symptoms.
Have you found that your allergy medicines stop working? Share your story, including whether you've found a solution, and learn from others.
