Cry, cry, just keep crying and you will get used to it and accept it.
She cried for half an hour, and the torrential rain around her had been pouring for more than half an hour. Fortunately, the surface of Deep Taihu Lake was vast and the water was deep enough; otherwise, the water level might have risen substantially.
Such an innate divine ability of the Yuan Water Azure Dragon, if assigned to help An Commandery Prince plant trees and forests in the northern defense, wouldn't be a bad choice for a strong warrior.
However, the main issue with the northern defense was actually the low humidity in the air; even if Little Qinglong really went there to exert her divine power to gather clouds and make rain, it would be hard to achieve such might and effect.
Otherwise, given An Commandery Prince's status, borrowing a dragon capable of gathering clouds and making rain would not be impossible.