Buy some predator mites. More effective than ladybugs for spider mites. They are inexpensive in my area, 2 dollars for a small sachet. One sachet per 2 ft height and width roughly per plant.
Untill then spray foilage and stem and petioles with water.
Mites love stressed for nutrients plants and dirty as in dusty plants. They like warm places with little airflow so a fan will help out some.
And FYI gotta keep the adult ladybugs around to lay eggs. Its the hatched larvae that eat the mites.