If family members aren't local or able to help navigate through the many different local resources, your physician should be able to help you. With previous surgical history related to arthritis, there are many different people who are able to lead you to someone or something you are looking for. Your physical therapist will also be able to help locate specific tools to help your pain decrease. Local stores or pharmacy's, such as CVS or Walgreens, will have different options for heating packs.
Astin, J. A., Beckner, W., Soeken, K., Hochberg, M.C., & Berman, B. (2002, June 05). Psychological Interventions for Rheumatoid Arthritis: A Meta-Analysis of randomized Controlled Trials. Retrieved March 02, 2017, from http://onlinelibrary.wiley.com/doi/10.1002/art.10416/full
(n.d.). Retrieved March 02, 2017, from http://www.ctcpjournal.com/article/S1744-3881(16)30001-9/full