RICE is outdated for acute injuries, and even for chronic pain rest and ice is a poor approach to support healing.
There are much better approaches for reducing pain and inflammation with chronic pain. Here are just a few:
// grounding barefoot to the earth for 30 minutes per day
// gentle movement through the area of pain, paired with light touching/self massage of the area to improve lymphatic flow
// staying hydrated – dehydrated tissues are often more painful than hydrated tissues
// alternating heat and ice (3 minutes heat, 1 minute ice) to help improve blood flow to the area