"lip blisters from lack of sleep"

Lip Blisters That Strike When You Are Tired: Herpetic Stomatitis, Is Immunity the Answer?

Have you ever looked in the mirror in the morning and felt startled by small, reddish blisters forming around your lips, thinking, 'Oh, not again'? Rather than brushing it aside with a casual 'It must be because I am tired,' these lip blisters always seem to appear at crucial moments, making our hearts sink. Have you ever considered that these blisters might not just be from simple fatigue, but rather a strong warning signal sent by our body?