hello and welcome to HCM,
Since your doctor has already started you on a stronger medication and also on steroids
and you have already started to feel better then you do not need to change any medication for the time being.
However to reduce your congestion you may try steam inhalation and also add an antihistamine tablet for better symptom control
You may also need to consult your ENT to evaluate the status of your sinuses
You must make it a point to complete the whole course and not stop anything midway unless of course you are not getting relieved in which case you may need to go for injectable medication.
take only warm fluids and do salt water gargling
Dr Sriram Nathan