hey hun, theres a few posts on here about these. i love them! have used them from being 3/4wks post op..although u are supposed to wait until 6wk! im now 7 months post op and my scars a great! cut them down to size to cover your scar, put them on for at least 12-24 hours a day. rinse with warm water and non fragranced soap and leave to air dry then use again. carry on using them until they loose their stickyness then cut some new ones down. and u can use them for however long u want until u feel your happy with your scars. they are fab for reducing raised and red scars xx