A sinus infection is symptomatic of a weakened immune system which could be relative to either the balance between zinc & copper in ones system. especially if zinc is low & copper is high.These are examples of many minerals that need to be balanced & involve immunity.
examples of food that could cause this is a high consumption of dates(copper) & no or low consumption of seeds such as pumpkin, or avacado fruit or brazil nuts which all have good levels of zinc. Copper supports estrogen which is also another reason that hair loss & immune deficiency could be symptomatic of the deficiency, not to mention the inbalance that is set to influence hormonal production & function in either male & female given different genetic dispositions.
Genetic differentiations are influenced by mineral level variations across generations which can activate illnesses when total load or overload tolerances are achieved in such conditions like acidic or alergic situations.