The phrase "which aggravated" is correct and usable in written English.
You can use it when referring to an action that makes a situation worse. For example: "The loud construction noise outside my window, which aggravated my headache, kept me awake all night."
(Most of these involve sexual experimentation which aggravated existing tensions within the trio).
The book also describes the American press, which aggravated the crisis (in Mr. Bowden's opinion) by fanning its flames.
He was shocked by the "venom" in the speeches, which "aggravated the hostilities between the two communities as never before".
To me it's inevitable that the economy and Sept. 11, which aggravated those economic forces, will act as a depressant on the sale of high-end real estate".
It may be more fruitful to think of democracy as a profoundly fraught emotional and social condition – one which, aggravated by turbo-capitalism, has now become unstable.
Posada had the day off after exiting Wednesday's game early when he was struck by a foul tip on his left ring finger, which aggravated a lingering injury.
When OA occurs, the concentration of HA decreases, which aggravates damage to knee cartilage17,18.
Her skin is acutely sensitive to even mild irritations, which aggravate her persistent, debilitating pain.
An additional challenge, raising particularly in industrial problems, has been the intermediate heat transfer network which aggravates the combinatorial complexity.
During IDD, the expression of IAPP, Calcr, and RAMP3 was decreased, which aggravates IDD through the mechanism described above.
In addition, pain leads to increased catecholamine release, which aggravates the patient's nutritional needs and energy expenditure.
