Not till tomorrow, according to the Tresiba Web site. It's a once-a-day insulin and you probably don't have/can't get a good idea of exactly how much leaked. Their advice is to check your blood glucose more often than usual for the day and get back on track for your next dose.
Welcome to the site, Sacha! When things settle down a bit, want to introduce yourself in our New Member Introductions forum?
Here is a link to some tips on injecting that may help avoid the leakage. I remember I was told to count to ten before removing the needle when I took insulin.
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