For your congestion you can try taking mucolytics( like Bromhexine), antihistaminics (like cetrizine or
fexofenadine), saline nasal drops to clear of the mucous and Antiinflammatory (
Ibuprofen). Also do steam inhalations 2-3 times / day. Drink plenty of warm water and take bed rest for one or two days. Hope this should reduce your symptoms. If it is not subsiding please do consult your physician.