Cold sores cause allergies to rashes and gangrene; Protect Yourself – 05/13/2022

Put in hot and cold, frost and snow. The scenery is similar to the northern hemisphere at Christmas, but no, it is Brazilian winter in some states of the country.

But how long does it take to “freeze” someone? Well, the skin should be around 0ºC / -0.5ºC for this to happen. It can vary from hours to days and depends on the infection, the cold, the clothes and the body.

“Even below 15ºC it starts to worry”, warns Carolina Milanez, dermatologist at Heliópolis Hospital, in São Paulo. Even more so in constant wind and on a motorcycle trip without protection: helmets, jackets, pants and warm gloves.

There may be no frostbite, but hypothermia, which is another major concern – and is both the cause and the result of freezing to death. The human body should be between 36ºC and 37.4ºC. Above, he had a fever. But the following is not good at all. At first, the condition causes chills, chills and, out of control, hearing and heart problems.

In the cold it is not very itchy …

Pedestrians experience the cold and rain in the old part of São Paulo, Thursday afternoon - Cris Faga / Estadão Points - Cris Faga / Estadão Points
Photo: Cris Faga / Estadão Content

Some skin is cold, but not frozen. Among the most common symptoms, also caused by dehydration, because in cold weather is essentially dry, is an allergy, which can affect the face, ears. and fingers. These areas become red, itchy, sometimes burning and swollen, and if left untreated they can cause sores and chilblains.

“Children can get a condition called panniculitis (inflammation of the area around the fat) and some diseases such as rosacea and psoriasis get worse,” said dermatologist Milanez.

Superficial frostbite also occurs during this period and leaves the skin sensitive, thick and creased. Therefore, be careful with hot and prolonged baths, as they contribute, in addition to the use of loofahs and antiseptic soaps, so that the lipid barrier of the skin against (natural fat) exposure. removes, dries the skin and causes atopic dermatitis.

On the other hand, the invisible areas are better protected from the cold, but not by its direct impact. This is a problem with the feet, which if they get wet / sweaty wrapped in socks and shoes for several days together can cause rashes, sores and mycoses. In this context, the nails also do not stop. Targets fungal, infectious, deform and even loss.

Thrombosis, dark lesion, necrosis

Dawn in Urupema (SC), July 29, 2021 - Fom Conradi / Ishoot / Estadão Concepts - Fom Conradi / Ishoot / Estadão Concepts

Dawn in the city of Urupema (SC), on July 29, 2021

Photo: Fom Conradi / Ishoot / Estadão Content

In very cold weather, prone to freezing, the extremities of the body lose heat quickly. Hands and feet, especially, become hard, numb, and cold, with a white or blue face. Beneath the tissues, ice ions are formed in or between the cells, which leads to odor, blood clots, thrombosis, and even necrosis.

“Men and women have a greater impact on the incidence of cold sores, smaller hands. But early treatment, such as diabetes, high blood pressure, infections, heart disease, hyperhidrosis, vasospastic disorders and Raynaud’s syndrome, of hypersensitivity to cold, are also “risk factors”, reports Bonno Van Bellen, angiologist and vascular surgeon at BP – A Beneficência Portuguesa de São Paulo.

The process of “frostbite”, if it reaches the deeper layers, causes gangrene (the area does not receive blood, darkens and dies from lack of oxygen, causing amputation). However, defrosting with direct exposure to heat (lights, candles) or friction is not recommended. This is because of the skin, numbness and dehydration, becoming very sensitive to burns and injuries. If there is a risk of refreezing, it may be harder than already frozen.

How to prevent tissue damage?

Pointing out the causes and implications, let us go to the recommendations. To protect yourself from the heat and cold and whatever they represent, it is necessary to wear appropriate clothing (e.g. lined), regular use of water, maintains efficacy, and specialized therapies, both to prevent and curb the severity of minor symptoms. .

Advise (which is contraindicated) to freeze cold, it is necessary to seek shelter and warmth as much as you can: coat, blanket, hot water, exercise bag and bag. thermal. To avoid heat loss, insulate surfaces and, in unprecedented circumstances, use newspapers and plastic bags to keep warm.

“In a more serious situation [com sinais de geladura], use warm water, between 37ºC and 39ºC. If there is no improvement, seek help and urgent care “, said Ricardo Rodrigues, vascular and vascular surgeon-caregiver at São Marcos Hospital, in Recife.

Now, in a day to day of a cool but not unbearable weather, keep your skin healthy and avoid aggression with sunscreen and products that improve its pH , with hydrating and invigorating actives (hyaluronic acid, collagen, antioxidants) – do not forget. lips and ears.

Change into wet clothes (which can also lead to hypothermia), quit smoking and drinking alcohol and if itchy, sore and peeling, see a dermatologist.

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