Steam inhalation will help in blocked nose. Looks like you have a common cold. Have you taken any anticold tablets? Please start gargling with luke warm water. Add little honey and common salt to it and gargle every 3 hourly.  Take crocin 500mg tablet for pian and fever as required. Make sure you are not allergic to any medicines. If condition does not improve in 1-2 days or become worse,  please consult a doctor personally.