Botox is not injected below the muscles, therefore it cannot effect the nasal mucosa behavior (a vasomotor process). It is most likely a result of a new onset infection or allergies. It is likely a coincidence the two happened so close in time. If your runny nose does not improve with time or treatment, you will need to see your doctor. Good luck!
Hello, and thanks for your question. I don't think your symptoms are related to Botox. If you are still concerned, I suggest following up with your physician. Best of luck, Dr. Frucht.