GP Issues Urgent Advice on Chafing and Heat Rash Amid 40C Heatwave
As the UK's latest heatwave sends temperatures soaring to 40C, a GP specialist in dermatology has shared how to avoid and treat chafing and heat rash. Dr Robert White, a General Practitioner with an Extended Role specialising in Dermatology and Skin Surgery, is the joint Clinical Lead for the NHS East Kent Community Dermatology Service. He has outlined key strategies for millions of Britons grappling with the heat.
Heat alerts have been extended as parts of England and Wales experience exceptionally hot and humid conditions. Certain regions could see temperatures climb to 40C on Wednesday and Thursday due to a 'heat dome' positioned over western Europe, triggering extreme weather across the continent.
What Causes Chafing and How to Treat It
Skin chafing is an uncomfortable irritation caused by friction between skin surfaces or between skin and rough materials. It commonly develops in warm, moist areas, including the inner thighs, groin, armpits, and nipples. When perspiration and moisture are present, they can soften the skin, making it more susceptible to tearing and breaking down with repeated rubbing.
Dr White said: 'Chafing is a common skin irritation caused by repetitive friction from skin rubbing against skin or clothing. It most frequently occurs between the thighs, under the arms, beneath the breasts, or in the groin area, especially during physical activity or in hot, humid conditions.' He added that complications include redness, burning, or stinging sensation, and in extreme cases, blistering of the skin. Broken skin can also lead to bacterial or fungal skin infections. In chronic cases, darkening of affected skin (hyperpigmentation) can occur.
Dr White's Recommended Treatments
Dr White recommends keeping the affected area clean and dry while applying Sudocrem to establish a protective barrier. He also suggests other creams, saying: 'Application of a barrier cream such as Sudocrem, Vaseline or Cicaplast will help, or a natural anti-inflammatory cream such as Aloe Vera. You can also take a short course (five to seven days) of a mild topical steroid such as hydrocortisone 1% cream.'
To tackle the issue before it arises, he recommends steering clear of tight-fitting clothing and opting for breathable materials, such as cotton or moisture-wicking synthetics. He explained: 'Applying lubricants before exercise can reduce friction. And wearing tight clothing for exercise (such as thigh bands or compression shorts) also minimises chafing.'
Heat Rash: Prevention and Treatment
According to Dr White, those who tend to perspire heavily or are unaccustomed to hot climates and suddenly find themselves on a sweltering holiday may also be more prone to heat rash. He said: 'Heat rash (also called prickly heat or miliaria) happens when sweat gets trapped in blocked pores, causing inflammation and irritation. It's especially common in hot, humid weather and is more commonly seen in areas where the skin rubs against skin or clothes. The best treatment for heat rash is to cool the skin and keep the area dry.'
He recommends application of anti-itch creams such as calamine lotion or anti-inflammatories such as hydrocortisone cream (for a few days only). Avoid ointments or oil-containing topical products, as these block pores and can make the situation worse. Oral antihistamines can help reduce severe itch.
Preventive Measures and Final Advice
Dr White emphasised: 'As ever, prevention is better than cure, wear loose-fitting clothing in light and moisture-wicking fabrics. And if you are somebody who is prone to heat rash, minimise exertion when in hot environments and keep well hydrated.'
When left untreated, chafing can change from a slight annoyance to a big health issue due to the chance of infection, serious physical trauma, and worsening situations. With temperatures forecast to hit 40C, following this expert advice is crucial for staying comfortable and healthy during the heatwave.
