Pain in cheek & difficulty in swelling can be due to:
1. Spasm of the muscle of mastication
2. Dental infection
3. Temporomandibular joint syndrome
So, it will be better to consult a Dentist
& get a proper examination done.
Based upon that, appropriate management steps could be taken.
For symptomatic relief, you can take analgesics & muscle relaxants.
Do warm water gargle to relieve throat pain, and avoid cold
food & drinks.
Wishing you Good Health.
Thanks and take care.