Profoot Blister Plasters Mixed Pack contain hydrocolliod instantly relieving the pain of blisters. They work like a second skin to remove the pain caused by rubbing on the blister. Whilst protecting the damaged skin from moisture, dirt and bacteria. They also absorb any fluid from the blister which creates an optimal environment for healing. Profoot Blister Plasters Mixed Pack can be used on existing blisters or red skin before a blister has formed.