Yes. Had severe reaction to Amoxicillin. Hives/rash progressed from a lesser rash. Extreme weakness partially attributed to mono. I was informed
that the allergy to PCN does occur oddly enough when one has mono and take the Amoxicillin. Then I had the joint pain after a week in the hospital.
It was a migrating arthritis that sometime occurs with the drug reaction to
Penicillin. Could you have had Mono?
I do have Arthritis years later but ostoarthritis now. Good luck. I do remember that it took me a half a year to recover from the original joint pain
related to the drug reaction and Mono combination. However I am now 70
and my hands have only minor Arthritis. Of course I never took a PCN again! Any chance you have arthritis or Carpal Tunnel or DeQuirvains Syndrome in you hands. Both are treatable. So some good news and ideas I hope.
This sounds like it has 100% to do with the Amoxicillin, and not Mono combined with Amoxicillin and so forth.
Amoxicillin can cause joint pain although this is not a common side effect, but can occur and should NOT be permanent, but temporary.
If this hasn't subsided, this definitely needs to be further investigated by your physician.