Does symbicort really lower immunity? anxious about germs now and getting sick

Unlikely: In the usual therapeutic doses, Symbicort should not cause any medically significant immune impairment. Although one may get a throat fungus if the throat is not rinsed out after each use, Don't worry about it.

No: Keep in mind that people with allergy and asthma will catch infections. During the trials with the exception of oral candidiasis and influenza, the rate infections was not any greater than those that received a placebo(neither pneumonia in COPD, Upper respiratory infections nor sinusitis) There is a caution against using any corticosteroid in those with tuberculosis, fungal or herpes infections.