Thanks for writing our query.
After reading your post, it seems that you are having congeston in your throat.
You should get a throat swab culture done to know whether some organism is still present.
Antihistaminic like Fenofexadine
120 mg once a day along with decongestant like phenylepherine to get relief from congestion in the throat.
Warm saline gargles will help you in relief from your symptoms.
I hope this is helpful to you.