question: Hi, about three mornings ago I woke up with a clear little bubble on my bottom lip of my mouth. It was annoying me so I decided to pop it, after i popped it i googled what it was and it told me not to worry but never to pop it cause it could cause infection. The next morning i woke up and not only had it turned into a huge ulcer and made my lip swell but also next to it a few centimeters were two yellowish scab looking things and my lip was huge and so chapped. It s been two more days and my first ulcer is going away but the two yellow ones aren t and now there looks like another regular looking ulcer that is forming right where my lip is cracked/chapped in the middle.