KT Tape also works well for hotspots (I like it better than moleskin):

• https://www.amazon.com/KT-Tape-Original-Kinesiology-Therapeutic/dp/B001RQYF1Q

Badger Foot Balm is also a quality product for feet:

• https://www.amazon.com/Badger-634084025019-Foot-Balm-Tin/dp/B0015MTSRS

I hope it gets better. Have you tried KT tape on the arm? I've been using it and it really does ease a lot of the strain.

*insert obligatory "Hail Bezos" here*

https://www.amazon.com/KT-Tape-Original-Kinesiology-Therapeutic/dp/B001RQYF1Q/ref=sr_1_1?s=sports-and-fitness&ie=UTF8&qid=1526229457&sr=1-1&refinements=p_4%3AKT+Tape

I got turned on to this after a bad knee sprain.

Here's how to tape the elbow.

https://www.youtube.com/watch?v=wa7FUlJCzyA