KidsMD Health Topics

Our Health Topics

Blisters

  • Overview

    A blister is a raised area containing blood or clear fluid that forms in a pocket under the top layer of skin.

    • Blisters commonly result from friction, such as when a child's shoe rubs against his foot.
    • They can also form as a reaction to other skin conditions, including sunburns and impetigo, a contagious infection of the skin.
    • Since the symptoms of a blister can resemble those of other medical conditions, you should consult your child's physician for a confirmed diagnosis.

    Children's Hospital Boston
    300 Longwood Avenue
    Boston MA 02115

     617-355-7701
     fax: 617-730-0505
  • In-Depth

    What is a blister?

    A blister is a raised area containing fluid under the top layer of skin. Blisters are usually circular in shape. The fluid that forms underneath the skin can be blood or serum, the clear liquid portion of the blood. These fluids sometimes collect in an area of damaged cells and form a blister.

    What causes a blister?

    Blisters can form as a reaction to trauma to the skin or certain skin diseases, including:

  • Tests

    The symptoms of a blister may resemble other skin conditions or medical problems. Always consult your child's physician if you think your child's blister may need medical attention.

  • A blister will usually heal on its own, but here are some general guidelines for treatment:

    • Calm your child and let him know that you can help.
    • Wash the area with soap and water.
    • Apply a cold or ice pack to reduce swelling and discomfort.
    • Keep the area clean and dry. Do not burst or "pop" the blister.
    • If the blister bursts, place an adhesive bandage or dressing on the area to keep it clean.
    • Observe the area for signs of infection such as increased warmth, swelling, redness, drainage or pain. If you notice any signs of infection, call your child's physician. Antibiotics may be needed.
Request an Appointment

If this is a medical emergency, please dial 9-1-1. This form should not be used in an emergency.

Patient Information
Date of Birth:
Contact Information
Appointment Details
Send RequestIf you do not see the specialty you are looking for, please call us at: 617-355-6000.International visitors should call International Health Services at +1-617-355-5209.
Please complete all required fieldsThis department is currently not accepting appointment requests onlineThis department is currently not accepting appointment requests online

Thank you.

Your request has been successfully submitted

You will be contacted within 1 business day.

If you have questions or would like more information, please call:

617-355-6000 +1-617-355-6000
close
Find a Doctor
Search by Clinician's Last Name or Specialty:
Select by Location:
Search by First Letter of Clinician's Last Name: *ABCDEFGHIJKLMNOPQRSTUVWXYZ
More optionsSearch
Condition & Treatments
Search for a Condition or Treatment:
Show Items Starting With: *ABCDEFGHIJKLMNOPQRSTUVWXYZ
View allSearch
Visitor Information
The future of pediatrics will be forged by thinking differently, breaking paradigms and joining together in a shared vision of tackling the toughest challenges before us.”
- Sandra L. Fenwick, President and CEO
Close