Hi, thanks for using healthcare magic
The presence of a intermittent
sore throat like you are describing sounds like it may be related to
sinusitis.
This can cause an intermittent sore throat that would be worse late evenings because of the change in temperature.
You can consider the use of a topical
nasal spray, an antihistamine may need to be added if you still experience symptoms.
In some persons , severe gastroesophageal reflux can also result in a sore throat.
I hope this helps