Burning, itching or tingling sensation occur even before lesions appear. An outbreak in lip
area starts with small blisters
(vesicles) filled with clear yellowish fluid, on a swallen, red, painful area. Blisters burst and ooze. Finally, yellow crusts form.
Herpes labialis can be treated both topically and orally with anti-viral drugs. Untreated, the symptoms will go away, but slightly slower. It is important to prevent secondary bacterial infection too (antibiotic cream).