Hi and thanks for the query
You seem to have an upper respiratory tract
You can use decongestant nose drops and followed by steam inhalation twicw a day to relieve your blocked nose
Avoid air conditioning and cold
See your gp if you dont feel better in 3 more days or if your symptoms get worse in the next 2 days.
Till then drink lots of water and get some rest
Regards Dr Kishori.