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Image: General stock photo of Salonpas Pain Relieving Patch found online Credit: Here |
Anecdote time:
I woke up with aching shoulders the day I was supposed to do a marathon. Not wanting to feel the pain, I slapped a couple of Salonpas patches on, one on each shoulder and proceeded to head down to the marathon.
One of the worse decisions of my life.
Due to the nature of the marathon, I could not drop out halfway, not even if I was in agonising pain... Which I was. During the run, I had perspired a lot, and somehow the sweat had interacted with the Salonpas patches. The low heat which was soothing my muscles had transformed into some kind of super hot patches, and the heat was agonizing. I ripped off the patches when it first started, unfortunately there was more then enough residue left on my skin for the reaction to take place. After the run, when I took a shower, there were red patches where the Salonpas was located.
Just how did that happen??
Active Ingredients (each Salonpas patch, information as taken from here):
- Camphor 1.2%…..Topical Analgesic
- Menthol 5.7%…..Topical Analgesic
- Methyl Salicylate 6.3%…..Topical Analgesic
Butylated Hydroxytoluene, Hydrogenated Rosin Glycerol Ester, Maleated Rosin Glycerin Ester, Natural Rubber, Perfume, Polybutene, Polyisobutylene, Silicon Dioxide, Starch Grafted Acrylate, Titanium Dioxide, Tocopherol Acetate, Zinc Oxide
Uses
For temporary relief of minor aches & pains of muscles & joints
Do not use:
-On wounds or damaged skin.
-If you are allergic to aspirin or salicylates.
-With a heating pad.
-With, or at the same times as, other external analgesic products.
-If you are allergic to any ingredients of this product.
So how did it happen?? There was absolutely no indication that you cannot exercise with the patches on!
In my (non)expert opinion, the most likely culprit was all three of the active ingredients. Both menthol and camphor can be chemically triggered to produce either cooling or heating sensations. Methyl Salicylate is also a combination of menthol and salicylic acid, and salicylic acid is an NSAID (Non-Steroidal Anti-Inflammatory Drug). It was just my luck that either my sweat or my clothing or a combination of both, had made the patch ramp up its heating effects.
So, this review is a Joke-But-Not-A-Joke, because I don't think there are as many un-informed users out there who goes out running with a patch on. However, it really hurt. No joke.