Many of us have, or will experience a blister at some point in life, whether it be due to those new shoes or during a period of activity.
Blisters, a common injury, are painful fluid filled lesions, caused by friction and shearing forces. Frictional forces, that occur on various sites of the foot, cause separation between the epidermal layers (the top layer of our skin), and this space then fills with fluid.
Blisters can be caused by: ill fitting footwear, ill fitting socks, new shoes and foot anomalies. Blisters occur frequently amongst the vigorously active and are one of the most common injuries sustained by runners.
TREATMENT: To lance or not to lance?
Small, intact and pain free blisters should be left alone, especially if they occur during activity or mid race. The overlying skin will act as a protective covering, to remove this and continue applying increase force (as in any sports) will result in greater pain.
The best solution in this case would be to Protect and Deflect. Use a ‘donut’ shaped pad to deflect pressure away from the blister. Dubai Podiatry Centre also provides a specialist fleece padding which can be cut to size, which is adhesive and specifically prevents friction and blisters - we recently used it for Extreme Marathon runner John Woods whilst competing in the Marathon De Sables through the Sahara Desert, and the padding entirely prevented friction from the inevitable sand in the trainers causing extreme blistering, which has been known to occur to debilitating extremes in other competitors.
Large and painful blisters can be lanced, post activity, using a sterile needle. Firstly cleanse the skin with alcohol or betadine solution and then gently pierce a small opening at the edge of the blister. Lightly press the fluid towards the open area, allowing the blister to drain fully. Do not remove the overlying skin, the ‘roof’ should always be left intact, and the area covered with a sterile protective dressing.
If sepsis (infection) or dirt gathers below the roof, then you should seek podiatric treatment immediately.
PREVENTION is the key
You can reduce the incidence of blisters simply by wearing adequate fitting footwear and socks. Socks, preferably toe socks, will act as a protective layer between your feet and shoes, thus reducing the frictional forces on the skin. Plasters and other ‘second skin’ products such as Compeed will also protect from such forces. Remember also, that new shoes should fit well from day one - the need to 'break in' shoes is a myth!
