Shortness of breath or difficulty breathing counts as a serious COVID-19 symptom, and likely, for patients who had some level of lung involvement during their COVID-19 infection (a common manifestation of the delta variant) , it may take some time for the respiratory organ to recover completely, and thus, symptoms like breathlessness, chest pain, shortness of breath may persist for some time.
Persistent cough, changes in voice may also be experienced if you have severe swelling of the upper respiratory tract.
While patients should focus on restoring lung function and not over-stressing themselves, if symptoms persist, breathing exercises should also be done and slow movements for short periods of time. Some may also need oxygen support for a period of time to recover. Soothing drinks and concoctions definitely help too.
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