Preventing and treating blisters – tips from a Harley Street expert

“A blister can be formed when fluid fills within the top layer of the skin. This can be caused by mechanical friction, tissue damage from burns, or from freezing temperatures. As well as allergic reactions and certain skin conditions such as fungal skin infections,” says Marion.

According to Marion, there are four main types of blisters.

“The most common causes of blisters are repetitive force or mechanical movements of an object or a material against the skin. This can happen anywhere on the body. Blisters can develop on the hands by sweeping the floor continuously for a long period of time. Cleaners may develop them,” says Marion.

“On the feet by wearing new footwear. New footwear materials may be too stiff and irritate the skin. As we walk or exercise, repetitive friction from the shoe to the skin may cause a blister,” she continues.

Moist skin – i.e. sweaty feet – is more likely to blister than very wet or very dry skin. Blisters are most common on the hands and feet.

The preventative measures which can be taken to help prevent blisters include:

“As a Podiatrist, I recommend using a specialist plaster to protect the area. We can use a special dressing that contains hydrocolloids that can protect the area and reduce pain. If your blister becomes painful or becomes infected please see a Podiatrist or your GP,” says Marion.

“A blister may take a few days to several weeks to heal. It all depends on the blister’s size and depth. Using a hydrocolloid dressing can speed the healing process,” says Marion.

Blisters usually heal on their own and shouldn’t be too painful if the affected area isn’t rubbing on anything. They can, however, get infected, so speak to a doctor if you suspect infection.

“If the blister is very large, hurting, or infected then please see a professional. They may pop the blister and dress the area accordingly. They will keep the top layer of the skin intact, as the skin protects the blistered area. If you do not have any issue with the blister then it is recommended to leave it alone as the blister will get better by itself and the fluid will return back to the body and the skin will become flat. Popping it may increase the risk of infection in the area,” says Marion.

Ideally, you should leave the scab alone, cover it with a plaster and let it heal naturally. Painkillers can be used if the area is sore. Regularly changing your plaster and checking the area can help you catch any infections early. If you suspect an infection, talk to a healthcare professional.

Prior to applying any blister plasters or dressings, you’re advised to clean and dry the wound with cool water and a clean cloth. This applies to both open blisters and those that have not been drained or popped.

*Marion Yau does not endorse any products or brands.