Asana Eladi Tailam is a traditional herbal oil, used in the Ayurvedic treatment of headache, ear and eye diseases.
Benefits:
It is used in Ayurvedic treatment for headache, ear and eye diseases. It is also useful in skin diseases. More effective to prevent catarrh.
How to use? 
It is used for external application only. It is applied over head. It is also used for Ayurvedic treatment procedures like head massage.
Asana Eladi tailam side effects: 
There are no known side effects of this oil.
Asana Eladi Tailam ingredients:
Asana – Pterocarpus marsupium
Bilvamoola – Aegle marmelos
Bala – Sida cordifolia
Guduchi – Tinospora cordifolia
These above herbs are used to prepare Kashayam
The following herbs are added in paste form
Ela – Elettaria cardamomum
Sthoola Ela – Amomum Subulatum
Turushka – Hydnocarpus laurifolia
Pushkaramoola – Inula racemosa
Phalini – Callicarpa macrophylla
Brahmi – Bacopa monnieri
Jala – Coleus zeylanicus
Dhyamaka – Cymbopogon martini
Sprukka – Adenosma indiana
Choraka – Curcuma zeodaria
Chocha – Cinnamomum zeylanicum
Tagara – valeriana wallichii
Sthouneya – Taxus baccata
Jati – Myristica fragrans
Rasa – Commiphora myrrha
Sukti – Ostrea edulis
Vyaghra – Ipomoea pestizoides
Surahva – Cedrus deodara
Ushira – Vetiveria zizanioides
Srivasaka – Pinus longifolia
Chanda – Costus speciosus
Guggulu – Commiphora mukul
Devadhoopa – Shorea robusta
Khapura – Boswellia serrata
Punnaga – Calophyllum inophyllum
Nagahva – Mesua ferrea
Kumkuma – Saffron – Crocus sativus
Karpoora – Camphor – Cinnamomum camphora
Peya – milk
reference: Sahasrayoga