Salonpas Koyo Hijau is a topical pain reliever that contains methyl salicylate and menthol. It is used to relieve pain and reduce inflammation in muscles and joints. Apply a thin layer to the affected area, 2-3 times a day, as needed. Do not exceed the recommended dose. Common side effects include skin irritation, redness, and itching. Rare side effects include allergic reactions, skin rash, and liver damage. Do not apply Salonpas Koyo Hijau if you have a known allergy to any of its ingredients. Inform your doctor if you have kidney or liver disease, or if you are pregnant or breastfeeding. - Medisfera Bali Pharmacy