Aidplast Pain Relief Cold Patch is a perforated cold plaster designed to provide relief from muscle and joint pain. The patch contains menthol, methyl salicylate, and camphor that work together to create a cooling sensation and increase blood flow to the affected area. The active ingredients work through multiple mechanisms: Menthol stimulates cold receptors and helps block pain signals, methyl salicylate provides topical pain relief, and camphor acts on receptors to provide analgesic effects. The patch is indicated for muscle strains, joint pain, lumbago, sciatica, and rheumatic conditions. The perforated design allows for better breathability while maintaining strong adhesion to the skin. Each patch measures 12x18 cm and is skin-friendly for comfortable extended wear.