 [ Symptoms ] is naproxen sodium 550 mg safe for a sun burn blister only lip  i had a soccer game yesterday in the hot sun extremely hot i got home waited about 30mins and took a shower i still remember my face being very hot i do not know if this caused two blisters to appear on my lip is naproxen recommend for my lip to become less swell [ Disease ] cold compresses may be better but it would be safe to take naprosyn for the discomfort i do not know if these blisters are herpetic or not many cold soresfever blisters activate from sun over exposure