These are basic Unani terms used in basic fundamentals of management of disease under Unani system of medicine.
Here term ilajbittadbeer means treatment done by different regimenal therapies.
And the term taghziya means treatment with the help of different type of modifications in diet.
If the treatment is not possible with these above to terms fundamentals then "ilaj biddawa " is added to the above fundamentals. Which means addition of single or / and compound fromulations are added to "ilaj bittadbeer wattaghzia".
Hope this explanation will help you to understand above terms.