<unk>  is covered by handkerchief or forearm Proven methods to reduce<unk> ng generally advocate reducing interaction with irritants, such as keeping pets out of the house to avoid animal dander; ensuring the timely and continuous removal of dirt and dust particles through proper housekeeping; replacing filters for furnaces and air-handling units; air filtration devices and humidifiers; and staying away from industrial and agricultural zones. Tickling the roof of the mouth with the tongue can stop a<unk> . Some people, however, find<unk> s to be pleasurable and would not want to prevent them. Holding in<unk> s, such as by pinching the nose or holding one's breath, is not recommended as the air pressure places undue stress on the lungs and airways. One computer simulation suggests holding in a<unk>  results in a burst of air pressure of 39 kPa, approximately 24 times that of a normal<unk> .
Sneeze
Nasal congestion
Cough
Habit cough
Phlegm
Bad breath
Sore throat
Hajj Cough