Hi!
Your problem might be associated with underlying fracture of small bones of foot.
Next Steps
Rest to foot
Local application Ice packs
Crepe bandage application
Limb elevation on a pillow
Xray Left forefoot-AP and oblique views
NSAIDs for 10 days
Health Tips
If pain does not subside and you are unable to bear weight on that foot even after a few days, get an X ray!