Flonase Sensimist Allergy Re0.54 Fl. Oz. Packlief Nasal Spray You may start to feel relief the first day and full effect after several days of regular, once-a-day use. Store between 59-86 degrees F (15-30 degrees C). Do not refrigerate or freeze. Keep this label and enclosed materials. They contain important additional information. Misc: Fluticasone Furoate Nasal Spray. Allergy symptom reliever (Glucocorticoid) (Fluticasone furoate is a steroid medicine known as a glucocorticoid). New. Gentle mist. Scent free. Alcohol free. Full prescription strength non-drowsy 24 hour relief of: itchy, watery eyes; nasal congestion; runny nose; itchy nose; sneezing. What problems can Flonase Sensimist Allergy Relief help with? Flonase Sensimist Allergy Relief helps relieve a broad range of uncomfortable symptoms like congestion and itchy eyes (for ages 12 and older). Nasal symptoms. Eye symptoms (for ages 12 and older). These symptoms can be triggered by allergens like pollen, mold, dust or pet dander. Outdoor allergens. Animal allergens. Indoor allergens.