Blisters

Definition

Blisters are lesions of the feet that are filled with pockets of fluid, caused by rubbing, friction, or burns.

Blisters form as a defence mechanism to protect skin from further damage and aid healing.

Causes

Friction- From foot deformities, or wrinkling socks against skin.


Rubbing- Potentially from ill fitting footwear


Burns


Drug Reaction- Blisters can develop as a reaction to certain drugs


Infection- Blisters can occur as a symptom of some infectious conditions for example, chicken pox or shingles

Symptoms

  • Redness
  • Pain or soreness
  • Fluid filled lesion on the skin

Treatment

Self Treatment:


If the blister is still intact and has not popped:

  • DO NOT pop the blister
  • Blisters tend to heal on their own if left alone and the cause of the blister removed
  • Cover the blister with a plaster or dressing to keep it clean. Be careful not to apply tape to the blister, as this will de-roof the blister once plaster/ dressing is removed

If blister has popped:

  • Clean with mild soap and water
  • Apply antiseptic
  • Keep blister covered or apply soft redressing like Compeed to help skin heal

Blister prevention is essential in maintaining foot health:


  • Ensure shoes fit well
  • Cushion and pad over areas at increased risk of pressure e.g toe deformities
  • Ensure socks fit well

When to see a Podiatrist

  • If blisters become painful
  • To check if orthotics maybe helpful to relieve pressure areas
  • For dressing/ footwear advice