A blister  is a  bump on the skin containing fluid. It is usually circular in shape . The fluid that forms underneath the skin can be clear or bloody.

What causes blisters

Blisters are caused by allergic reactions, injuries and infections  which include the flowing :

• Burns / scalds
• Sunburns
• Contact dermatitis
•  Friction for example from a shoe
• Viral infections such as chicken pox and herpes zoster
• Impetigo which is a contagious  infection of the skin
• Fungus
• Thumb sucking
• Medication reaction

The symptoms of  a blister may   resemble other infection or medical conditions. It is always important to contact your health care professional for diagnosis.

First aid for blisters

Blisters often heal spontaneously. Treatment will vary according to the cause. Some of the general guidelines  for treatment include the following :

• Wash the area  with soap and water
• A cold or ice pack may reduce the swelling
• Keep the area clean or dry . It is important not to burst or puncture 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, pus formation  or pain. Call your child’s physician if you notice signs of infection. Antibiotics may be needed.