Can fever blisters be caused by stress?

Oh absolutely, stress is like the main trigger for these annoying blisters! Don't stress too much about them, because that will just make it worse. Get some good sleep, put some ice on it, and it'll clear up in a few days.

I can only share what happens to me, but every time I have a major office presentation or deadline, a fever blister pops up on my lip. It is like my body's way of saying I need a break. I just let it run its course and try to rest.

Between my night shifts and screaming toddler, I haven't slept properly in months, and yes, my lips are currently sporting a lovely fever blister. Stress and lack of sleep are basically an open invitation for them. Honestly, just try to sleep if you can!

I completely understand how annoying and painful these can be, especially when we are already stressed. Applying a little cold yogurt or a damp, cool green tea bag on the spot really helps soothe the burning. Just keep the area clean and don't pick at it.