Irritative

a.	1.	Serving to excite or irritate; irritating; as, an irritative agent.
	2.	Accompanied with, or produced by, increased action or irritation; as, an irritative fever.

Adj.

1.

irritative - (used of physical stimuli) serving to stimulate or excite; "an irritative agent" Synonyms: irritating

irritating, stimulative