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**24**

Sinusitis is the infection of sinuses. Sinuses are four hollow cavities in face which are connected to nasal pathways to help moisten, warm and filter the air which we breathe in. Sinuses get irritated due to bacteria, virus and allergens. It is often associated with asthma and headache. Pressure in the sinuses is built by over production of mucous and leads to sinus headache. Asthma gets severe with the sinusitis as both are related to sino-nasal pathway. Treatment includes steroids, nasal decongestants, antibiotics and to avoid allergens which not only reduce the symptoms of asthma but also sinusitis. Acute sinusitis may turn into chronic sinusitis including narrowing of nasal passages, deviated septum and lumps in the nose (polyp). It can be treated with surgical procedures. The only way to prevent sinusitis is by precaution and medication. Post nasal drip may also associate with asthma causing bronchial constriction.

**Keywords:** sinusitis, sinus headache, sinus asthma, post nasal drip, treatment, factors, prevention
