4 links have been added on this idea.
  1. Hmmm, the dangers of Mentholatum

  2. Hmmm, the dangers of Mentholatum

  3. “Heat causes the blood vessels to dilate, bringing more blood to an area, which brings oxygen, protein and nutrients – helping muscles and joints become more flexible and move more freely. This process also helps repair damaged tissue so may aid the healing process.”

  4. There are better solutions… https://www.campingwithstyle.co.uk/secret-happy-camping-staying-warm/