How To Get Taste And Smell Back After Covid?

Losing your sense of taste and smell is one of the most frustrating symptoms of a COVID-19 infection. For most people, these senses return within a few weeks as the body heals. There is no single guaranteed way to speed up the process, but specific smell training exercises and time are the most reliable approaches supported by clinical evidence.

Why Does COVID-19 Affect Taste and Smell?

COVID-19 primarily targets the cells that support your olfactory neurons. These are the nerve cells in your nose responsible for detecting odors. The virus does not typically destroy the neurons themselves. Instead, it damages the surrounding support cells, which causes the neurons to stop functioning properly.

This is why the loss is often sudden and profound. Many people report that food tastes like cardboard or that they cannot smell anything at all. The sense of taste itself is mostly dependent on smell. Your tongue can detect sweet, salty, sour, bitter, and umami, but the complex flavors of food come from your sense of smell.

When your smell is blocked, your brain cannot process flavor. This is why the condition feels like a total loss of taste, even though your taste buds are usually working fine.

How Long Does It Take To Recover?

Most people recover their sense of smell within two to four weeks after the infection clears. Research consistently shows that the majority of patients regain normal function within this period without any intervention.

However, a smaller group of people experience longer-lasting changes. Some studies suggest that up to 10% of people may have persistent smell dysfunction for several months. A very small number of people develop parosmia, a condition where smells are distorted. Things that once smelled pleasant, like coffee or fresh bread, may suddenly smell rotten or chemical.

This distortion is actually a sign that the nerves are healing. As the olfactory neurons regenerate and reconnect, they can send scrambled signals to the brain. Parosmia usually improves over time, though it can take months to resolve fully.

How To Get Taste And Smell Back After Covid

The most evidence-based method for recovering your sense of smell is olfactory training, also known as smell training. This is a simple, safe exercise that involves exposing your nose to specific scents repeatedly over time.

The standard protocol uses four distinct odors: rose, lemon, clove, and eucalyptus. You can also use items you have at home, such as ground coffee, cinnamon, vinegar, or mint. The goal is to stimulate the olfactory system in a structured way.

Here is how to do it:

• Choose four strong, distinct scents.
• Smell each one for about 20 seconds.
• Breathe in gently and focus on the scent.
• Rest for 10 seconds between each scent.
• Repeat the cycle twice a day, morning and evening.

Clinical evidence indicates that smell training helps the olfactory system recover more effectively than doing nothing. It is thought to work by promoting nerve regeneration and helping the brain reconnect to the new sensory signals. The key is consistency. Most protocols recommend continuing for at least 12 weeks.

It is important to note that smell training is not a quick fix. You will not wake up the next day with your full sense of smell restored. Improvement is gradual and often subtle. You may first notice that you can detect faint hints of a scent, or that a smell is almost familiar. This is a positive sign that the healing process is underway.

Does Steroid Rinse or Medication Help?

Some clinicians recommend corticosteroid nasal rinses or sprays for persistent smell loss. The logic is that reducing inflammation in the nasal passages may help the olfactory nerves function better. This approach is common in clinical practice, but the evidence supporting it is not strong.

Some research suggests that steroids may help when the loss is caused by nasal blockage or congestion. However, COVID-related smell loss is often not caused by blockage. The problem is neurological, not mechanical. In these cases, steroids may not offer significant benefit.

If you are considering this option, you should discuss it with your doctor. They can assess whether your nasal passages are inflamed and whether a steroid rinse is appropriate for your specific situation. Do not use over-the-counter steroid sprays without medical guidance for this purpose.

What About Supplements and Vitamins?

The internet is full of claims that high doses of vitamin A, zinc, or alpha-lipoic acid can restore smell. The evidence for these supplements is limited and mixed. No large human trials have confirmed that any supplement reliably restores smell after COVID-19.

Vitamin A drops have been studied for smell loss from other causes, but results are inconsistent. Zinc has been proposed because it is involved in cell repair, but there is no solid clinical evidence that it speeds up recovery from COVID-related smell loss. Alpha-lipoic acid is sometimes mentioned, but the research is too weak to support a recommendation.

Eating a balanced diet that includes adequate vitamins and minerals is always sensible. But taking high-dose supplements specifically to regain smell is not supported by current evidence. If you choose to try them, understand that you are experimenting without a proven benefit. Always tell your doctor about any supplements you take, especially if you have other health conditions.

When Should You See a Doctor?

Most people do not need medical treatment for COVID-related smell loss. If your smell has not started to return after several weeks, or if it is affecting your quality of life, it is reasonable to see a healthcare provider.

You should also see a doctor if you experience any of the following:

• Loss of smell that lasts longer than three months
• Distorted smells that are severely unpleasant
• Weight loss because food is unappealing
• Signs of depression or anxiety related to the loss
• New or worsening neurological symptoms

In rare cases, smell loss can be a sign of another condition, such as a sinus infection, nasal polyps, or a neurological disorder. A doctor can rule these out. They can also refer you to an ear, nose, and throat specialist if needed.

It is also worth noting that a sudden loss of smell is no longer considered a definitive sign of COVID-19 on its own. Other respiratory viruses can cause the same symptom. If you lose your sense of smell, it is still wise to test for COVID-19, but do not assume it is the only possible cause.

Practical Tips While You Recover

While you wait for your senses to return, you can take steps to make eating more enjoyable. Focus on textures, temperatures, and visual appeal. Crunchy foods, spicy foods, and foods with strong umami flavors may be more noticeable even when smell is reduced.

Eating cold foods like yogurt, ice cream, or chilled fruit can be more pleasant because they engage your sense of touch and temperature. Chewing food thoroughly releases more aroma compounds, which may help you detect faint smells.

Be cautious with salt and sugar. If you cannot taste food, it is easy to over-season. This can lead to high blood pressure or blood sugar spikes over time. Use measuring spoons rather than shaking directly from the container.

Make sure you have working smoke detectors and gas detectors in your home. Without a sense of smell, you cannot detect a gas leak, smoke, or spoiled food. This is a practical safety issue that is often overlooked. Check the expiration dates on food regularly and rely on visual inspection rather than smell.

What Does the Research Say About Long-Term Recovery?

Long-term recovery rates are generally good. Most people who experience smell loss from COVID-19 eventually recover, even if it takes many months. The process is slow for some, but permanent loss is rare.

Research published in medical journals indicates that the majority of patients regain their sense of smell within one year. The recovery is often not linear. You may have good days and bad days. You may notice that certain smells return before others. This is normal.

If your smell has not improved after six months, your chances of full recovery decrease, but they do not disappear. Some people continue to see gradual improvement for up to two years. The brain has a remarkable ability to adapt, even when the sensory input is incomplete.