Nebulization is a form of respiratory care. It is a medical procedure to take the drug directly in with the help of a nebulizer that converts the liquid drug into a mist, which is then given to the patient with the help of a breathing mask. Nebulization is usually given for patients requiring respiratory care for asthma, young patients with COPD, and other respiratory problems and who are unable to use an inhaler. Nebulization is sometimes prescribed for severe cases of nasal and chest congestion.
After undergoing a nebulization procedure the effect is seen almost immediately with noticeable difference in breathing sounds and no further wheezing and reduced chest tightness. Patients with blockage in the nose and chest also get immediate relief from this therapy.   

When using the nebulizer at home, it is essential that proper care is taken regarding the care of the nebulizer, as the machine and the mouthpiece can build up bacteria over time. The mouth piece should be cleaned with alcohol or warm water after each use. If the hand held nebulizers are turned off, it should be replaced immediately.
The advantages of nebulization are as follows;

Nebulization therapy is really useful for young children who are unable to use any other inhalation device.
Nebulization is also very helpful for the elderly who cannot administer the inhaler.
Nebulization is very helpful in the event of an acute asthma attack for self-use at home.
Having a nebulizer at home gives the patient a mental boost so that viable help is nearby when needed.
Some extremely severe asthma patients receive more help with nebulized medications than standard inhaler devices available.