1、 External factors:
Formed by exposure to rain, damp living conditions, and exposure to fog and dew, such as exercising in the morning during autumn and winter, taking baths and swimming at night for a long time, working in water for a long time, and living in basements for a long time, this is called external humidity.
2、 Internal factors:
Excessive overthinking, physical fatigue, deficiency of qi and blood, leading to spleen dysfunction, inability to distribute fluids normally and turning into dampness and turbidity, or excessive consumption of oily and sweet foods, excessive alcohol and cold drinks, and internal dampness and turbidity are known as internal dampness.
There is a strange phenomenon called 'Big Wet'
Not everything wet is called 'big wet', let's see if you qualify for promotion:
Primary humidity:
Head: Waking up in the morning, feeling hazy and not refreshing.
Limbs: usually sore, lazy, and weak.
Intermediate high humidity:
Head: Like wrapped in a wet towel, heavy or hazy.
Limbs: I feel heavy when going up and down stairs or walking, and my legs feel like they are filled with lead.
Mouth: sticky and not refreshing.
Sweat: heavy sticky odor.
Advanced humidity:
Abdominal: prone to bloating, nausea and vomiting, loss of appetite, long-term diarrhea, and irregular bowel movements.
Intestine: Constipation, uncomfortable bowel movements, extra toilet paper, sticky stool, sticky toilet.
Hall level humidity:
Facial swelling; Every time I wake up early, my face or eyelids become fuller and more sexy. 
Legs and feet: swelling; Every night, I feel that my boots have swollen calves or deep sock marks on my ankles; Sweating on hands and feet; Foot odor. 
Skin: Itching skin; Eczema. 
Tongue and tongue: yellow and greasy coating on the tongue; Drowning while sleeping, spitting stars flying in the air while speaking. 
Limbs: The body often feels heavy and sore, with arthritis.
The four major dampness dispelling switches on the body can all dispel dampness by tapping, pressing, and moxibustion.
The four major dampness removal switches on the body
1. Fenglong acupoint
Location: Foot Yangming Stomach Meridian Point, located on the anterior lateral side of the calf, 8 inches above the tip of the lateral malleolus, two transverse fingers away from the anterior edge of the tibia.
Effect: Regulating spleen and stomach qi, dispelling dampness and resolving phlegm.
2. Zusanli
Location: Foot Yangming Stomach Meridian Joint Point, which is a key point for health care, is located 3 inches below the outer knee and 1 horizontal finger away from the anterior edge of the tibia.
Effect: Zusanli not only has the functions of regulating the spleen and stomach, dispelling wind and dampness, but also can nourish the middle and qi, strengthen the body and eliminate evil, which is conducive to enhancing the body's immunity.
3. Zhongwan acupoint
Location: In the upper abdomen, on the midline, 4 inches above the navel.
Effect: It has the effects of harmonizing the stomach, strengthening the spleen, reducing stress, and promoting diuresis, and is suitable for those with dampness stagnation, bloating in the epigastric region, and belching.
4. Quchi Cave
Location: Hand Yangming Large Intestine Meridian Point, located at the outer end of the elbow crease when fully flexed.
Effect: Can relieve damp heat in the large intestine, used for those with burning anus, yellow and rotten stool, and inability to discharge completely. It can also treat skin diseases such as eczema.