Take 500 grams of crude sea salt, stir-fry it in a pot for about 5 minutes until the salt turns yellow and gives off heat, put it into a cloth bag with a width of about 15 cm and a length of about 20 cm, fold back the mouth of the bag and fix it with a pin. The optimum temperature is 40℃~50℃.

Second, efficacy.

Salt is not easy to cool after heating, which can achieve the effect of local warmth.

Hot compress can raise local skin temperature, relax muscles, dilate skin capillaries and improve local and even systemic blood circulation.

Hot compress with coarse salt can not only make the warmth penetrate into the body, but also suck out the evil spirits and cold in the body, and has the functions of warming meridians, activating collaterals, diminishing inflammation, dispelling cold and relieving pain. It has obvious effects on backache, arthritis, chronic stomachache, diarrhea, neuralgia and chills.

Sogou asked.

Extended data:

Four misunderstandings of hot compress

Not all diseases can be treated by hot compress. Hot compress also has contraindications. Pay special attention to hot compress at home.

1, not everyone is suitable for hot compress.

People with insensitive or abnormal skin feelings, such as the elderly, children, diabetic neuropathy and stroke patients, should not blindly apply hot compress. If you need hot compress, be sure to control the temperature, otherwise it will be easy to burn.

2, not all cases can be hot compress.

If the skin has ulceration or dermatosis, avoid hot compress on the surface of the lesion to prevent infection or irritation of dermatosis and aggravate symptoms.

In addition, in the early stage of acute soft tissue injury such as sprain and strain, there is blood stasis under the skin, so it is not suitable for hot compress within 24~48 hours, otherwise it will aggravate local swelling.

Not all diseases are suitable for hot compress.

Hot compress is mainly aimed at cold diseases, so patients with warm diseases should not be hot compressed.

This kind of people tend to get angry easily, especially afraid of heat, or accompanied by bad breath and constipation, and women also show excessive menstrual flow.

4. Hot compress is by no means the hotter the better.

The temperature of hot compress should not be too high, generally 40~50 degrees Celsius, and the hot compress time is about 20 minutes. If hot compress is applied to delicate parts of the skin, the temperature needs to be lower.

At the same time, it is necessary to avoid being fixed in one place for a long time, otherwise it is easy to cause burns. The most common is that improper use of hot water bottles leads to skin burns.