And Other Things You Can Live With But Could Get Along Very Well Without - Weather discomforts
Using good sense about clothing, exercise, and proper diet is probably our best protection against the discomforts caused by extremes of temperature. Sometimes circumstances make this exercise of good sense impossible, with unpleasant but rarely serious results, if treatment is promptly administered. Following are some of the more common disorders resulting from prolonged exposure to excessive heat or cold, and what you can do to alleviate them.
In a very hot environment, a person may drink great quantities of water while “sweating buckets” of salty perspiration. Thus, the body's water is replaced, but its salt is not. This saltwater imbalance results in a feeling of faintness and dizziness accompanied by acute stomach cramps and muscle pains in the legs. When the symptoms are comparatively mild, they can be relieved by taking coated salt tablets in five-to-ten-grain doses with a full glass of tepid or cool—not iced—water. Salt tablets along with plenty of fluids should be taken regularly as a preventive measure by people who sweat a great deal during hot weather.
If you have not yet been exposed to much sun, as at the beginning of summer, limit your exposure at first to a period of 15 to 20 minutes, and avoid the sun at the hours around midday even if the sky is overcast. Remember, too, that the reflection of the sun's rays from water and beach sand intensifies their effect. Some suntan lotions give effective protection against burning, and some creams even prevent tanning; but remember to cover all areas of exposed skin and to reapply the lotion when it's been washed away after a swim.
A sunburn is treated like any other burn, depending upon its severity. See “Burns” in Ch. 31, Medical Emergencies . If there is blistering, take care to avoid infection. Extensive blistering requires a physician's attention.
This condition is different from heatstroke or sunstroke, discussed below. Heat exhaustion sets in when large quantities of blood accumulate in the skin as the body's way of increasing its cooling mechanism during exposure to high temperatures. This in turn lowers the amount of blood circulating through the heart and decreases the blood supply to the brain. If severe enough, fainting may result. Other symptoms of heat exhaustion include unusual pallor and profuse cold perspiration. The pulse may be weak, and breathing shallow.
A person suspected of having heat exhaustion should be placed in a reclining position, his clothing loosened or removed, and his body cooled with moist cloths applied to his forehead and wrists. If he doesn't recover promptly from a fainting spell, smelling salts can be held under his nose to revive him. As soon as he is conscious, he can be given salt tablets and a cool sugary drink—either tea or coffee—to act as a stimulant. Don't give the patient any alcoholic beverages.
Sunstroke or Heatstroke
Sunstroke is much more of an emergency than heat exhaustion and requires immediate attention. The characteristic symptom is extremely high body temperature brought on by cessation of perspiration. If hot, dry, flushed skin turns ashen gray, a physician must be called immediately. Too much physical activity during periods of high temperature and high humidity is a direct contributing cause.
See “Heatstroke” in Ch. 31, Medical Emergencies , for a description of the emergency treatment recommended for this condition.
One of the most widespread discomforts of cold weather is chapped skin . In low temperatures, the skin's sebaceous glands produce fewer oils that lubricate and protect the skin, causing it to become dry. Continued exposure results in reddening and cracking. In this condition, the skin is especially sensitive to strong soaps.
During cold, dry weather, less soap should be used when washing, a bath oil should be used when bathing, and a mild lotion or creme should be applied to protect the skin from the damaging effects of wind and cold. A night cream or lotion containing lanolin is also helpful, and the use of cleansing cream or oil instead of soap can reduce additional discomfort when cleansing chapped areas. The use of a colorless lip pomade is especially recommended for children when they play out of doors in cold, dry weather for any length of time.
A chilblain is a local inflammation of the skin brought on by exposure to cold. The condition commonly affects people overly sensitive to cold because of poor circulation. When the hands, feet, face, and ears are affected, the skin in these areas itches and burns, and may swell and turn reddish blue.
The best way to avoid chilblains is to wear appropriate clothing during cold weather, especially warm socks, gloves, and ear coverings. The use of bed socks and a heating pad at night is also advisable. Once indoors, cold, wet feet should be dried promptly, gently, and thoroughly. Rubbing or massaging should be avoided, because these can cause further irritation. People who suffer from repeated attacks of chilblains should consult a physician for diagnosis of circulatory problems.
Frostbite is a considerably more serious condition than chilblains, because it means that a part or parts of the body have actually been frozen. The fingers or toes, the nose, and the ears are most vulnerable. If frostbitten, these areas turn numb and pale and feel cold when touched. The dangerous thing about frostbite is that pain may not be a warning. If the condition is not treated promptly, the temperature inside the tissues keeps going down and eventually cuts off blood circulation to the overexposed parts of the body. In such extreme cases, there is a possible danger of gangrene.
In mild cases, prompt treatment can slowly restore blood circulation. The frozen parts should be rewarmed slowly by covering them with warm clothing or by soaking them in lukewarm water. Nothing hot should be applied—neither hot water nor a heating pad. Nor should the patient be placed too close to a fireplace or radiator. Because the affected tissues can be easily bruised, they should not be massaged or rubbed. If you are in doubt about restoring circulation, a physician should be called promptly or the patient taken to a hospital for emergency treatment.