Less commonly, cystitis may occur as a reaction to certain drugs, radiation therapy or potential irritants, such as feminine hygiene spray, spermicidal jellies or long-term use of a catheter. Cystitis may also occur as a complication of another illness. The usual treatment for bacterial cystitis is antibiotics.
The maneuver is based on the fact that when a patient forcibly exhales against a closed nose and mouth while bearing down, as if having a bowel movement, specific changes occur in blood pressure and the rate and volume of blood returning to the heart.
1 Heâs a gambler and maneuverer whose bold moves are not testaments to vision or cojones but to the unhealthiness of his domestic political situation.  In this WSJ example, whose appears before the adjective bold, which is describing the noun moves. Whose is acting as a relative pronoun.