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Explanations by Spring Quality
This page introduces General Indications and Contraindications, also Indications and Contraindications for each Spring Quality.
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⑦Acidic Springs
酸性泉
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"Hot spring for skin diseases" with excellent sterilizing power
Hot springs with more than 1 mg of hydrogen ions（H+）in 1 kg of hot spring water.
In many cases, it contains free hydrogen sulfide（H2S）and is highly acidic.
It is called "Hot spring for skin diseases" because it has very high sterilizing power and removes a wide range of causes of problems on the surface of the skin.
It is also effective for athlete's foot.
The "Acidic Springs" is said to be good for sterilizing Staphylococcus aureus in atopic dermatitis.
In fact, in patients with atopic dermatitis, many harmful bacteria called Staphylococcus aureus are present at the site of inflammation. Staphylococcus aureus is inhibited from reproducing in an acidic environment and tends to increase in a neutral to alkaline environment. In healthy skin, the skin surface is weakly acidic, whereas atopic skin tends to have a weak tendency to return to a weakly acidic state. Thus, atopic dermatitis is likely to be improved by hot spring therapy, and "Acidic Springs" seem to be particularly effective.
Also, the indications by spring quality include Plaque psoriasis, Impaired glucose tolerance (diabetes), and Epidermal suppuration.
It is also said to be effective against ringworm disease, trichomonas vaginitis, and scabies.
The "Acid Springs" is not suitable for people with sensitive skin, as it is highly irritating, and it is also easy to get hot water fatigue.
Contraindications for bathing by spring quality include hypersensitive skin or mucous membranes, and dry skin in the elderly.※Same as Sulfur Springs
Because of its strong bactericidal properties, there are no indications for drinking it. The reason is that there is a risk of stomach irritation.
Before the revision of the Hot Springs Law, the indication for drinking was "Chronic gastrointestinal disease", but if you want to drink it, it would be safer to dilute it with water first.
The combination of "Acidic Springs": "Hot spring for sterilization" and "Sulfur Springs (Hydrogen sulfide type)": "Hot spring for beauty" are often seen in famous hot springs. However, please keep in mind that the stronger the efficacy, the skin is more stressed.
Indications by Spring Quality For bathing Atopic dermatitis, Plaque psoriasis, Epidermal suppuration, Impaired glucose tolerance (diabetes) For drinking None Contraindications by Spring Quality For bathing Hypersensitive skin or mucous membranes, dry skin in the elderly ※Same as Sulfur Springs For drinking None - ■Old name of spring・・・Acidic spring (same as new spring name)
- ■Color of water・・・Cloudy white / Gray
- ■Taste & Smell・・・Acidity, irritant smell (hydrogen sulfide smell when mixed with sulfur spring)
- ■Water texture・・・Tingling feeling right after bathing
- ■Major hot spring inns・・・"Hana-Kanzashi" Dake Onsen, Fukushima prefecture／"Oku Shiobara Kogen Hotel" Arayu Onsen, Tochigi prefecture／"Manza Prince Hotel" Manza Onsen, Gunma prefecture／"Unzen Fukudaya" Unzen Onsen, Nagasaki prefecture
| General Indications ※Indications for all spring quality |
For bathing | Chronic pain or stiffness of muscles or joints (chronic phase of rheumatoid arthritis, osteoarthritis, lower back pain, neuralgia, frozen shoulder, bruises, sprains, etc.), muscle stiffness by motor paralysis, sensitivity to cold, peripheral circulatory disturbance, gastrointestinal hypofunction (slow digestion, intestinal gas formation, etc.), mild hypertension, impaired glucose tolerance (diabetes), mild hypercholesterolemia, mild asthma or emphysema, pains of hemorrhoidals, autonomic instability, various symptoms from stress (sleep disorders, depression, etc.), restorative phase from illness, recovery from fatigue, health promotions |
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| For drinking | ※There is no general indications for drinking. |
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| General Contraindications ※Contraindications for all spring quality |
For bathing | Active stage of diseases (especially when fever is accompanied), active tuberculosis, advanced malignant tumor, or the case of significant debility involving severe anemia, severe cardiac or lung diseases involving suffocation feelings with a little movement, severe kidney disease involving edema, gastrointestinal bleeding, when there is visible bleeding, acute exacerbation stage of chronic diseases, etc. |
| For drinking | ※There is no general contraindications for drinking. |