Treatment of this inanimate form (13)

I believe the answer is:

antihistamine

I'm a little stuck... Click here to teach me more about this clue!

'treatment' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe you can see an association between them that I don't see?

'this inanimate form' is the wordplay.
'form' indicates an anagram (a different form of the same letters).
'this'+'inanimate'='thisinanimate'
'thisinanimate' with letters rearranged gives 'ANTIHISTAMINE'.

'of' acts as a link.

Can you help me to learn more?

(Other definitions for antihistamine that I've seen before include "Allergy drug" , "Drug treating allergies" , "Hay fever treatment" , "Medicine used to treat allergies" .)

I've seen this clue in The Daily Express.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.