Cold Sore Relief: Prevention, Home Cures & Faster Healing

Stopping a cold sore from forming involves early intervention with vitamins, ice, or salt. Learn how to reduce fever blister swelling and manage symptoms safely while breastfeeding or dealing with flu-like symptoms.

Pediatrician examine baby with stethoscope

Fever Blisters in an 11-Month-Old Infant

Published Aug,14 2017 | By April Sanders

Fever blisters are small, fluid-filled bumps that appear around a person's mouth. They can affect anyone, from adults to infants. Also called cold sores, they are caused by a common virus called Herpes simplex, according to the American Academy of Dermatology.