
Losing your sense of smell or having a change in your sense of smell is not going to directly cause you harm, but it can increase your risk of some potentially harmful things, such as:

What you put in your nose could be absorbed in your bloodstream, which could potentially be dangerous to your health. Home or natural therapies are becoming increasingly common, but DO NOT try these without talking to your doctor first. The risks or potential benefits are not yet known. Other therapies like stellate ganglion blocks, alpha-lipoic acid, and plasma-rich plasma (PRP) injection are being investigated as potential treatments for COVID-induced parosmia.


Due to side effects, they are mostly used in patients with severe symptoms. These medications, such as gabapentin and amitriptyline, are also used to control chronic pain or headaches. Limited research has shown some improvements in olfactory dysfunction. Neuromodulating medications alter the way nerve cells send signals.High-volume saline irrigations or sinus rinses (Neilmed, Netipot, Navage) help improve inflammation in the nose after an infection and may improve recovery after infection.Studies have shown that these therapies can improve sense of smell in about 10-25 percent of patients. Intranasal steroids (fluticasone or mometasone) are low-risk nasal spray therapies.It often takes about 6 to 12 weeks to notice an impact and up to 24 weeks for maximal impact. Research has shown it can improve parosmia in long COVID patients. It involves smelling strong scents (citrus, cloves, eucalyptus) every day while thinking about what they smell like to try to help reform normal responses to your nose and brain. Olfactory retraining is the process of retraining your nose to smell.

However, some therapies may help some patients. There are no guaranteed treatments for post-COVID-19 parosmia.
