Why Does My Sweat Smell Like Onions After COVID

Why Does My Sweat Smell Like Onions After COVID?

COVID-19 is a viral respiratory illness caused by the novel coronavirus. While the most common symptoms include fever, cough, and difficulty breathing, many individuals have reported experiencing unusual symptoms even after recovering from the virus. One such peculiar symptom is the onset of onion-like body odor in their sweat. This phenomenon has perplexed many, leading them to wonder why their sweat smells like onions after COVID. In this article, we will delve into the possible reasons behind this unusual occurrence.

Possible Causes

1. Metabolic Changes: COVID-19 can cause various metabolic changes within the body. It is believed that these changes may affect the composition of sweat, leading to the release of volatile compounds responsible for the onion-like odor. However, further research is needed to confirm this hypothesis.

2. Dysfunctional Olfactory System: COVID-19 is known to affect the sense of smell in some individuals. This condition, known as anosmia, can alter the perception of odors, including that of sweat. While some individuals may experience a loss of smell, others may encounter distorted or heightened senses. Therefore, the perception of sweat smelling like onions may be a result of a dysfunctional olfactory system.

3. Residual Effects of Medications: Many individuals who have had COVID-19 require various medications during their illness, such as antibiotics or antivirals. These medications can have an impact on the body’s metabolism, potentially leading to changes in sweat composition and odor.


Q: How long does the onion-like body odor typically last after recovering from COVID-19?
A: The duration of the onion-like body odor can vary from person to person. For some individuals, it may be a temporary symptom that disappears within a few weeks after recovering from the virus. However, for others, it may persist for a longer period. If you are concerned about the duration or intensity of the odor, it is recommended to consult with a healthcare professional.

Q: Can anything be done to alleviate or eliminate the onion-like body odor?
A: While there is no specific treatment for this symptom, maintaining good personal hygiene can help reduce the intensity of the odor. Regularly showering, using antibacterial soap, and wearing clean clothes can help minimize the unpleasant smell. It is important to note that this symptom usually improves over time as the body recovers from the virus.

Q: Is the onion-like body odor a sign of reinfection or a lingering virus?
A: No, the onion-like body odor is not typically associated with reinfection or the presence of the virus in your system. It is believed to be a result of the metabolic changes and altered sense of smell experienced during the illness. However, if you are experiencing any other concerning symptoms, it is advisable to consult with a healthcare professional to rule out any potential complications.

In conclusion, the onion-like body odor experienced by some individuals after recovering from COVID-19 is a perplexing symptom that has yet to be fully understood. It may be attributed to metabolic changes, a dysfunctional olfactory system, or the residual effects of medications. While it can be bothersome, the odor usually improves over time. If you have concerns about this symptom or any other complications, it is always best to seek medical advice from a healthcare professional.


  • Laura @ 262.run

    Laura, a fitness aficionado, authors influential health and fitness write ups that's a blend of wellness insights and celebrity fitness highlights. Armed with a sports science degree and certified personal training experience, she provides expertise in workouts, nutrition, and celebrity fitness routines. Her engaging content inspires readers to adopt healthier lifestyles while offering a glimpse into the fitness regimens of celebrities and athletes. Laura's dedication and knowledge make her a go-to source for fitness and entertainment enthusiasts.

    View all posts