Since you dont have any other symptom. It can be allergic/viral pharyngitis.
Next Steps
1. avoid cold fluids and increase intake of hot beverages.
2. take strepsil lozenges thrice daily.
3. gargle with saline water twice daily.
4. avoid any allergens you happen to know.
5. tab lcz 5 mg od for 5 days.
Health Tips
if throat itriti persists then take a online consultation. will be happy to help you.