There is basically nothing in common between a cotton swab and the swabs used for covid testing, other than they look similar. Cotton swab = cotton tip, covid swab = synthetic fiber tip, known to break apart and stick in sensitive tissues as it is used.
There is basically nothing in common between a cotton swab and the swabs used for covid testing, other than they look similar. Cotton swab = cotton tip, covid swab = synthetic fiber tip, known to break apart and stick in sensitive tissues as it is used.