Alternate Names: Blisters
Considerations: Vesicle is an important term used to describe the appearance of many rashes that typically consist of or begin with tiny-to-small fluid-filled blisters. Typical illnesses that begin with vesicular eruptions (the appearance of areas, patches, or crops of vesicles) are cold sore (herpes labialis), genital herpes, shingles (herpes zoster), and chicken pox.
Contact dermatitis may first show up with tiny vesicles that itch or burn. A typical example of contact dermatitis would be poison ivy. It begins with tiny vesicles that enlarge rapidly, rupture, ooze for a period of time, and finally crust over and heal.