Thanks for asking the query,
Tooth pain indicates infection in the tooth that had spread to the adjoining tissue,
this pain is radiating to the left side of the face.
I suggest you to get clinical evaluation of your tooth
Get an x-ray done , which will give the periapical condition of the tooth.
You probably have to go for root canal treatment of the tooth.
and antibiotics .
Analgesic and antibiotic will give temporary relief .
Unless the tooth is completely devitalised , disinfected and sealed to the apex you may experience pain and infection.
Maintain a good oral hygiene .
Hope this helps out.