Patients with multiple sclerosi s and other inflammatory diseases of the nervous system are usually medicated with drugs that alter the immunity reaction and that can potentially diminish the response of the body to viral infections. It is possible that patients under this medication may develop more frequently symptoms of infection by COVID-19, but, curiously, they could be protected from more serious complications of the disease. This, because the severe respiratory complications usually result from an excessive immune response of the body to the virus, and not from the virus itself. Thus, theoretically, patients with a more modest immunity system will have lesser risk of severe reactions. But, in fact, there is not yet sufficient data to confirm such theories. For now, we believe that the risk of suspending medication and lose control over the disease is higher, than the risk of developing complications due to COVID-19 infection. Most drugs more frequently used in multiple sclerosis seem to be safe and should not be suspended, even in case of active infection by COVID-19. But, in case of doubt, contact your attending doctor. Precautions to take in patients with multiple sclerosis Observe the adequate contact restriction measures; Maintain and carry out the therapeutics in progress; Maintain, as much as possible, daily routines, including physical exercise. Consequences of infection by COVID-19 in people with multiple sclerosis Symptoms similar to those of the flu, such as: fever; cough; muscle pain; fatigue; shortness of air. Recommendations in case of infection by COVID-19 Maintain hydration and control fever and pain with analgesic and / or anti-inflammatory medication; If you are under treatment with drugs administered in hospital, contact your attending doctor, in case the infection is confirmed; Follow the recommendations of the General Directorate for Health and the orientation of your health team; Be always alert to the evolution of the symptoms associated with the infection by COVID-19. If there is clinical aggravation, contact the health teams. Author : Inês Brás Marques Meet the Neurology team of Hospital da Luz network. Click here for more information and advice of Hospital da Luz about the novel coronavírus COVID-19 epidemic . The content published in the Health Guide is intended for the general public and is provided for informational and educational purposes only. It does not replace individual medical assessment, diagnosis, or personalized clinical advice from a qualified healthcare professional. The content is produced or reviewed by physicians and other healthcare professionals at Hospital da Luz and is based on the knowledge available at the time of publication or the most recent update, as indicated at the beginning of each item.