Aidplast Pain Relief Cold Patch is a perforated cold plaster designed to provide relief from muscle and joint pain. The patch contains active ingredients like menthol, methyl salicylate, and camphor that work together to create a cooling sensation and increase blood flow to the affected area. The patch measures 12x18 cm and utilizes a combination of active ingredients that work through multiple mechanisms. Menthol provides a cooling sensation and pain relief by activating cold receptors and kappa-opioid receptors. Methyl salicylate offers topical pain relief, while camphor works through receptor inhibition to provide analgesic effects. The perforated design allows for better breathability while maintaining strong adhesion to the skin. This product is indicated for relief of muscle strains, joint pain, lumbago, sciatica, and rheumatic conditions.