Plain and simply: “no.”
Research says that if you have low back pain, maintaining your normal day-today activity will help. The worst thing you can do is lay around, let your muscles and bones get weak, lose your endurance, etc. The best thing you can do is remain active; be aware of good ergonomics (“neutral spine”) with lifting, sitting, sleeping. For new or “acute” pain, ice is preferred for the first 3days (20minutes maximum at a time.) After the first three days can then experiment with hot back versus cold pack, based on which makes you feel better.
If pain persists, then time to visit your friendly physical therapist.