A dermal patch or skin patch is a medicated adhesive patch that is placed on the skin to deliver a medication into the skin. This is in contrast to a transdermal patch, which delivers the medication through the skin and into the bloodstream.
Popular uses 
- Lidocaine patches, marketed as Lidoderm, relieve the peripheral pain of shingles (herpes zoster). It is also now commonly used off-label, for pain from acute injuries and chronic pain, although limited by its requirement to be removed for 12 hours, after 12 hours of use.
- Flector (diclofenac epolamine) patch is an NSAID topical patch for the treatment of acute pain due to minor strains, sprains, and contusions. It is also being used in the treatment of pain and inflammation for chronic conditions benefiting from NSAIDs, including fibromyalgia and arthritis.