Without offense, as a question; if any topical applied to the skin is absorbed by your organs. If we are not allowed to ingest Aspirin or Ibuprofen orally; does this not apply also to our skin, the largest membrane of our body? My Rheumatologist suggested I use the Voltaren topical 4 times per day. Pure concentrated high strength Ibuprofen NSAID, not for me. If we can get lead poisoning from handling lead with our hands or the fumes from it melting on our skin, is it not probable to suffer side effects from Aspirin as a topical? I use the Icy-Hot roll on on my shoulders and lower back, but it is a bit harsh on sensitive skin areas. I sympathize and understand your need for additional relief and comfort and use of topicals. It seems hard to win this battle, but we must keep trying.
Best Wishes