Cold Sores Symptoms To Look Out For

Oozing And Crusting

Cold sores, as stated, typically start to appear as fluid-filled blisters around the mouth. However, a key sign these blisters are cold sores is if they start to ooze fluid and then eventually dry out and look yellow or brown, which is what crusting refers to. These are referred to the weeping and crusting stages of a cold sore and occur after the tingling and blistering stages (the first two stages of cold sore development). It is crucial to avoid aggravating or even touching the cold sore unnecessarily during the crusting stage, as this can set back the final stage, when the cold sore begins to truly heal.

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