I used Afrin once a day for three days. It has been three days since I used Afrin. When can I use it again?
You should probably wait another 3 days at least. Any sooner you might have rebound congestion. I'm speaking from experience. I've used it with only one or two days in between and got hooked on it for over 2 years. So what I'm saying is the longer you can go without the better.
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