Although generally safe, Salonpas can cause side effects in some people, including stinging and a local allergic reaction known as contact dermatitis. Salonpas pain patches are manufactured by ...

Plus, using heat might be preferable if you're worried about potential side effects from over-the-counter pain relievers — like aspirin or ibuprofen. How do temporary heating patches work?

However, there is evidence that it can cause side effects, some of which are ... of local anesthesia — and capsaicin patches. Lidocaine causes pain relief by acting on sodium ion channels.

It’s difficult to say with certainty what the side effects can be from weight loss patches, given that it’s hard to know what’s actually in them, Cording says. However, experts say a few ...

Don't apply more than one patch at a time because it can increase your risk of side effects due to the high dose of hormones. Common side effects include skin irritation and irregular bleeding ...