Liquid Muhi S2a
æķēä―ã ãS2a
Topical anti-itch and anti-inflammatory solution (steroid + antihistamine)
Liquid (sponge applicator)
Relief of itching, insect bites, dermatitis, contact dermatitis, hives, eczema, chilblains, and prickly heat
Active Ingredients (per 100mL)
Dexamethasone acetate 25mg
Diphenhydramine hydrochloride 2.0g
l-Menthol 3.5g
dl-Camphor 1.0g
Glycyrrhetinic acid 0.2g
Isopropylmethylphenol 0.1g
Inactive Ingredients
BHT, citric acid, sodium citrate, ethanol
Instructions for Use
- âFor children, use only under adult supervision.
| Age | Dose per use | Times per day |
|---|---|---|
| 6 months and older | Appropriate amount | Several times daily |
- âDo not use on the following areas:
- Chickenpox, athlete's foot, ringworm, or infected skin.
- Wounds, around the eyes, or mucous membranes.
- âDo not apply over a wide area of the face.
- âDo not use long-term: no more than 2 weeks on the face, or 4 weeks on other areas of the body.
- â Consult a doctor, pharmacist, or registered salesperson before use if you:
- Are under medical treatment.
- Are pregnant or possibly pregnant.
- Have had allergic reactions to medicines (rash, redness, itching, contact dermatitis).
- Have a large affected area.
- Have severe oozing or raw skin.
- âStop use and consult a doctor, pharmacist, or registered salesperson if any of the following occur:
- âĒ Skin: rash, redness, itching, or swelling.
- âĒ Affected area: signs of athlete's foot, ringworm, acne, pus, or persistent irritation.
- âIf symptoms do not improve after 5â6 days, stop use and consult a doctor, pharmacist, or registered salesperson, bringing this package insert with you.
- âPress the sponge applicator gently against the affected area several times to saturate it with the liquid, then apply to the affected area. If the liquid does not come out easily, press against a firm area of skin such as the back of the hand first.
- âDo not use with other ointments or creams on the same area â this may damage the sponge.
- âFor external use only. Do not ingest.
- âDo not cover the treated area with plastic wrap or other airtight materials.
- âStore in a cool place away from direct sunlight, tightly sealed. Keep away from fire. Keep out of reach of children. Do not transfer to another container. Do not use after the expiry date. Even within the expiry date, use as soon as possible after opening.
Additional Information
Contains dexamethasone acetate, a mild topical steroid. When used short-term on small areas such as insect bites, side effects are rare. To minimize the risk of steroid-related side effects, apply early and limit use to the recommended duration.
Sources & Documents
- Japanese product page
- Japanese PDF
- Last verified: May 30, 2026
Related Medicines
For informational purposes only. Always consult a doctor or pharmacist before taking any medication.