Thanks for your query at DoctorSpring.com
I understand your concern
It is usually difficult to distinguish strep throat from viral pharyngitis though streptococcus A causes more severe infection generally.
Your symptoms appear viral in origin. Keep using Cetzine A for 3 days and you can add NSAID such as ibuprofen twice daily/ Tylenol which will definitely help alleviate the symptoms. Add H2 blocker e.g ranitidine (on empty stomach) to prevent acidity. Also drink soothing/warm fluids such as lemon tea or have ice water. Gargle 4-5 times a day with saline or warm water with salt.
Hope it helps.