As per Ayurveda, strong immunity is a result of better digestion, metabolism (agni), healthy liver functioning and a balance hormonal function. Immunity is related to Ojas which means vigour in Sanskrit.
There are a whole lot of holistic ayurvedic formulations available that can cleanse the Ama, provide nourishment, lubricate and reinstate the balance. This process bolsters immunity and shields the body against infections.