Dolicare Skin Large format multi-zone heat plaster 2 patches are plasters without medicinal active ingredients for the treatment of muscle pain: muscle tension in the back (lumbago), in the shoulders and in the trapezius muscle, in the neck (torticollis), sore muscles. Generating heat when in contact with atmospheric oxygen, they are composed of caloric agents (iron, activated carbon, water...) that ensure a rapid action and a natural treatment, providing a constant and soothing heat for up to 12 hours is released. The patch is ergonomically designed and fits perfectly to the affected part of the body to relieve the daily pain. It accompanies you discreetly throughout the day and does not disturb you in everyday life. Dimensions: 9 x 29 cm. Apply the patch to the painful area. Do not leave it on the same area for more than 12 hours per 24 hours. Do not use on broken skin or if you have ever had an allergic reaction to a similar patch. Do not use on bruises or swelling less than 48 hours ago. Do not use on children under 12 years of age or on a person who cannot remove the patch themselves. Consult a doctor before use : if you are 55 years or older, your skin is more sensitive and the risk of burns is higher, if you have circulatory disorders, heart disease, rheumatoid arthritis, skin diseases (very delicate or sensitive skin, eczema, psoriasis), if you have diabetes or during pregnancy The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required