I don't think it's actually about alleviating them.
It's about assisting the body in them as much as possible.
For instance Vitamin C (Taken away from the Iodine) opens up the Iodine pathways and allows for better absorption. It also detoxes bromide and lead. Not to mention in megadose amounts it heals and protects the adrenals. It also is useful in blood Sugar control.
It's not about masking the symptoms, it's about optimizing the detoxification.