It is one of the panchakarmas mentioned in Ayurveda. It is a process by which drug is administered through the nostrils. Nose is the gateway of the head. So, systematically performed Nasya karma cures almost all the diseases of the head easily. It cleanses and opens the channels of the head and improves the oxygenation (prana), which has a direct and highly beneficial influence on brain functioning. If it is done properly and regularly it will keep the person's eye, nose and ear unimpaired. It also prevents the early graying of hair and beard. Nasyakarma will prevent the falling of hair. This treatment involves the administation of herbalized oils and liquid into the nostrils. It is useful for treatment of kapha-oriented problems, of ear, eyes, and nose and throat disorders such as migraine, sinusitis, catarrh, and bronchitis. It will ensure growth of hair and alleviate diseases like cervical spondilitis, headache, facial paralysis, hemiplegia, diseases of nose, frozen shoulder, hemi crania, coryza, sinusitis, mental disorders parkinsonism and skin complaints. Nasyakarma will enhance the activity of sense organs and prevent the diseases of head (urdhwanga). It will prevent the early aging process. The nose is the gateway to the brain and to consciousness. Prana or vital energy enters the body through breath taken in through the nose. Nasal administration of medication helps to correct the disorders of prana affecting the higher cerebral, sensory and motor functions. Nasya is indicated for dryness of the nose, sinus congestion, hoarseness, migraine headache, neurodegenerative conditions (i.e. multiple sclerosis), convulsions and certain eye and ear problems.

Types of Nasya
There are six main types of nasya, as listed below:

• Bruhana Nasya (nutrition nasya) uses ghee, oils, salt, shatavari ghee, ashwagandha ghee and medicated milk and is used mainly for vata disorders. It is said to benefit conditions resulting from vata imbalances such as vata-type headaches, migraine headache, dryness of voice, dry nose, nervousness, anxiety, fear, dizziness, emptiness, negativity, heaviness of eyelids, bursitis, stiffness in the neck, dry sinuses and loss of sense of smell.
• Shaman Nasya (sedative nasya) is used according to which dosha is aggravated but mainly for pitta-type disorders such as thinning of hair, conjunctivitis and ringing in the ears. Generally certain herbal medicated decoctions, teas and medicated oils are used.
• Navana Nasya (decoction nasya) is used in vata-pitta or kapha-pitta disorders and is made from decoctions and oils together.
• Marshya Nasya (ghee or oil nasya)
• Pratimarshya (daily oil nasya) is performed by dipping the clean little finger in the ghee or oil and inserting into each nostril, lubricating the nasal passage with gentle massage as described above. This helps to open deep tissues and can be done every day and at any time to release stress.

• Stiffness in the head, neck, teeth and jaw.
• Chronic coryza.
• Uvulitis.
• Tonsilitis.
• Seminal disorders.
• Cataract.
• Diseases of the eyelid.
• Hemicranial.
• Shoulder pain
• Diseases of mouth, nose, ear, eye and head.
• Facial Paralysis.
• Hysteria.
• Tetanus.
• Hoarseness of voice.
• Aphonia.
• Stammering.
• Toothache and other tooth disorders.