The Natural D-Hist is an powerful immune balance in hypersensitive individuals who anticipate seasonal changes. The formula includes optimal support for nasal and sinus passageways for individuals. It supports sinus and respiratory by promoting normal viscosity of mucus, and clears nasal passages.

Relief from Sneezing, Runny Nose, Itchy Eyes and Sinus Congestion, due to reaction to environmental mold, and fungus.