You seem to be affected with an attack of rhinitis
,i.e., an infection of the nose and upper respiratory passage.
Though it is a troublesome condition, it is not dangerous; so, don't you worry.
Take warm saline gargle.
Drink plenty of water.
Take a nasal decongestant and an antiallergic tablet.
If cough's troubling you, take a cough linctus.
Get a total and differential count of blood done.
A throat swab culture and sensitivity test is also advisable.
If your problem persists, don't hesitate to consult your family physician/ ENT Specialist