Thanks for your query.
From the history provided by you, it seems that you are having an upper
respiratory tract infection (fever,
throat irritation, cough). You haven't mentioned you age and gender though.
Medications like Amoxycillin, Amoxycillin-Claveulenic acid (625 mg, thrice a day for 5-7 days) and Azithromycin (500mg once a day for 3/6 days) may help (better to take it after a physician examines you). Droxyl clav is composed of Cefadroxil-claveulenic acid which may also be taken. You can take Paracetamol for your fever. For your
nasal congestion, a number of commercially available nasal decongestant may help. In the meantime you can continue the steam inhalation (which will moisten your airway).
Since you a giving a history of frequent cough/cold/nasal congestion, I would advise you to go for X-ray paranasal sinus, since sinusitis/pansinusitis can lead to these symptoms. Deviated nasal septum, may cause nasal congestion.
It would be good if you can contact your doctor/
ENT specialist, who can examine you thoroughly and give you the necessary medicines after clinical examination. A total
white blood cell count and differential count may be required to rule out severe bacterial infection.
Hope this helps you.