What can be a consequence of using ailerons during an imminent stall?

Using ailerons during an imminent stall can indeed lead to a worsening wing drop. When an aircraft is approaching a stall, airflow over the wings starts to become turbulent, particularly at higher angles of attack. In that situation, if the pilot utilizes ailerons to try to correct for a roll or yaw, it can exacerbate the stall condition.

Ailerons work by increasing lift on one wing and decreasing it on the other, which can result in an uneven distribution of lift. In the context of a stall, this can cause the wing that is experiencing a greater angle of attack to stall more rapidly than the other wing, leading to a severe yawing motion and potential loss of control. This wing drop can result in a more pronounced roll away from the lifted wing, complicating recovery efforts and often resulting in further degradation of aircraft control.

The pilot's focus during an impending stall should be on reducing the angle of attack, leveling the wings, and reducing control inputs to regain a stable flight condition, not on using ailerons.