Thank you for posting your query at DoctorSpring.com
You are suffering from upper respiratory tract infection.
You can start following medication
Cap. Augmentin 625 mg two times daily for 7 days, ( Amoxycillin + Clavulanic Acid )
Tab. Solvincold two times daily for 3 days
Nasoclear saline nasal drops
As duration of symptoms is 2 days only, no need of any investigations at present.
The medicines are enough as of now.
Hope this helps,
Feel free to discuss further,