Patients in several countries have reported frostbite, similar to frostbite, in many cases unaccompanied by the usual symptoms of Covid-19. Doctors called this “covid fingers.” The rash may take the form of red or purple lesions and appear both on the side or sole of the foot and on the hands or toes. The European Journal of Pediatric Dermatology has reported a large number of cases in children and adolescents in Italy. This manifestation had not been observed in rashes caused by infection with other coronaviruses.
Conjunctivitis is a rare symptom in cases of Covid-19, and viral particles are present in tears. The Royal College of Ophthalmologists and Optometrists in the UK has reported that it is known that any infection of the upper respiratory tract can result in viral conjunctivitis, as is the case with Covid-19. But in the case of Covid-19, conjunctivitis is unlikely to occur in the absence of other symptoms, such as fever or cough.
A Spanish study shows that 6% of 375 patients infected with the SARS Cov-2 virus had necrosis, ie tissue destruction caused by lack of blood or livedo, which means skin discoloration. The skin becomes mottled, like lace, with red or purple areas. This symptom has generally occurred in elderly patients and severe forms of the disease. But necrosis was also seen in Covid-19 patients who did not need hospitalization.
Dizziness and headaches
A study of 214 Chinese patients, published in the journal Jama Neurology, showed that just over a third of those infected had neurological symptoms, such as dizziness or headaches. The percentage increased to 45.5% in those with severe infections. Doctors say that neurological symptoms are a consequence of Covid-19 rather than a new symptom that should be studied separately.
Burning and tingling sensation
Some patients with Covid-19 have complained of a burning sensation or tingling. Dr. Waleed Javaid says they may appear as a reaction of patients’ immune systems to Covid-19, not as a direct action of the coronavirus. The cells of the immune system are activated, so many chemicals are released in the body, and this can be felt as tingling. Doctors say that each body reacts differently, but they have also encountered this immune reaction in other diseases.
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