Going to the gym for the first time, I feel sore all over. How to solve it quickly ~!

You can do massage and hot compress. Rub the sore muscles first, then rub or beat them, so that you won't feel the pain. Apply a hot towel to your muscles or take a hot bath.

Take another day or two off.

If it is a muscle strain, don't do massage and hot compress. Muscle strain is more painful and should be easier to distinguish.