background and purpose: the goal of asthma therapy is to achieve clinical control and near normal lung functions. many patients with moderate persistent asthma fail to achieve this goal with a low dose of inhaled corticosteroid (ïçs) plus long-acting β2 agonist (lâbâ). ïn the present study, we have checked whether another controller medication (in the form of ginger capsule) add on to ïçslow do...