A healthy flora in the mouth and throat protects us against viruses and helps prevent colds. These are the keys to favor your balance.

When we talk about the microbiota, we usually think of the bacteria that inhabit the intestine, but the microbiota is the set of micro-organisms that live throughout our body, in the intestine, on the skin, in the vaginal mucosa or in the mouth. Among these bacteria we find many that are friends and many others that are not. Whether in the intestine, on the skin or in the mouth, the important thing is that there is a balance between the different bacteria and that they can coexist harmoniously.

When the microbiota is balanced we speak of eubiosis; when it is unbalanced, we have a dysbiosis. Having an oral microbiota in eubiosis, that is, a balanced bacterial flora in the mouth and throat, helps us prevent colds and other respiratory infections, and even reduces the risk of coronavirus.


First of all, it is convenient to know that the different mucous membranes of the body are connected and that the imbalance in the microbiota of one of them can end up affecting the others. Therefore, the first recommendation would be to take care of the intestinal microbiota.

Second, there is a key factor in maintaining a healthy oral microbiota and preventing colds and other infections is breathing through your nose. Nasal breathing has many advantages:

  • When you breathe through the nose, the nasal villi filter the air, trapping some of the particles that make it dirty and preventing them from entering the respiratory tract.
  • In addition, the nasal mucosa has the capacity to secrete T lymphocytes, which would be the front-line soldiers of the immune system when an infection occurs.
  • Another advantage of breathing through the nose is that air enters the maxillary sinuses. The maxillary sinuses, holes that we have in the bones of the upper jaw, are lined by a mucosa that produces nitric oxide, with antiviral and antibacterial action.

If you do not have internalized nasal breathing or you have difficulties for some reason, the pranayama techniques that help to train it can be useful.

Nasal washes should also be done at night if we have a lot of mucus.

Some drugs, stages of hormonal change such as menopause or adolescence, stress or an unbalanced diet can alter the oral microbiota.


In addition to taking care of your breath as a basic measure, there are many other things you can do to promote bacterial balance in your mouth and throat:

  • Avoid the indiscriminate use of mouthwashes, which are usually aggressive with the oral microbiota. Using a mouthwash can be useful at certain times, but if there is no inflammation and there is good dental hygiene, it is not necessary to use it every day. Preferably opt for a natural mouthwash.
  • Avoid, if possible, taking frequent drugs such as antibiotics or antidepressants.
  • Reduce your stress levels, one of the great enemies of a healthy microbiota. In a situation like the current one, with an ongoing pandemic, fears are frequent, which fuel stress. If this is your case, Bach Mimulus and Aspen flowers can help.
  • It can be useful to help the liver and promote its cleansing, for example by drinking the water from boiling artichokes.
  • The oil pulling, a good rinse made with vegetable oil, clean the mouth in depth and slows the proliferation of viruses, because having such a fat – soluble membrane are driven by oil. It would be a question, every morning and on an empty stomach, to rinse thoroughly with a tablespoon of sesame or coconut oil (or, failing that, olive oil). You can add a drop of good quality rosemary verbenon essential oil. In theory this rinse should be done for about 20 minutes, but you can start with a little less time and make sure you do it thoroughly.
  • After oil pulling, you can gargle with hydrogen peroxide (a few drops diluted in 10 parts of water). This helps to clean the tonsil area well where pathogens accumulate without damaging the oral microbiota.
  • As a preventive use against viruses, other essential oils that may be useful are the essential oils of laurel, ravintsara and tea tree. You can dilute 5 drops of each with a quality vegetable oil, for example calendula, rub the mixture on your hands and inhale the aroma. From homeopathy, as preventive remedies, it is proposed to take Gelsenium and Arsenicum album 30 CH , 3 granules every other day, for three weeks


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