Can taking medication cause new symptoms of seasonal allergies? i had to take diflucan for about 1 1/2 months and ever since i started it and stopped a month ago i've been experiencing a tingling sensation in my nose that i've never had before?

In order to figure out what this new sensation is from, you need to see a doctor and be examined. Your family doctor is a good place to start and then the family doctor can refer you to an ear nose and throat doctor if needed. Hope you feel better soon! Best of luck to you!

Highly unlikely: If Diflucan was stopped a month ago, then there is almost no chance that it is no longer present in your body. A more likely explanation is other causes, and symptoms starting around the time you started taking Diflucan likely being a coincidence. If the allergy-like symptoms are bothering you enough, then it’s worth contacting your doctor for additional evaluation.