The Hydrocolloid White Gel Bubble - What Does It Look Like?

The Hydrocolloid White Gel Bubble - What Does It Look Like?

My mother came to visit last month.

She bought a new pair of shoes on her last day, wore them all day, walked all around town and guess what happened.

Blister!

She got a blister on her big toe that deroofed.

Bad news for mum.

But as it turned out, good news for me. Because I needed to photograph how a blister heals with a hydrocolloid plaster. There’s only one other photographic example of the hydrocolloid white gel bubble and I was keen to enhance that.

The only thing was she was leaving town that day. So she promised she would take photos and send them to me.

She did a great job. Her photos clearly show how the white gel bubble forms so you can see this is completely normal.

New deroofed blister with hydrocolloid blister plaster applied.

A white gel bubble starts to form within hours which indicates the wound is healing.

How Hydrocolloids Heal

Hydrocolloid blister plasters are exudate-absorbent hydrophilic gel dressings. They’re rubbery and slightly translucent. As your deroofed blister weeps, the hydrocolloid material absorbs the fluid and turns into a gel. From the outside, it looks like a white bubble. The dressing remains waterproof the whole time. The white bubble is a sign that your blister is healing.

You can learn more about how hydrocolloid blister plaster work here including:

  • When you should change your plaster

  • What your blister will look like when you take your plaster off

  • Why you should tape the edges of your plaster down

Blister healed after a week

Blister healed!

Mum sent me a photo of her healed blister a week later on her way down south 😃

Examples of Hydrocolloid Blister Plasters

Click here if you want to know more about treating the 3 types of blisters, stimulating healing and preventing infection?


Podiatrist, blister prone ex-hockey player, foot blister thought-leader, author and educator. Can’t cook. Loves test cricket.