A friend tested positive with an at-home self test kit last week. Very light initial symptoms which cleared within two days but she took the test and so much for holiday plans (she retested using a different product a day later and same result).

She plans to go to Dubai in February but is worried that PCR tests may show her positive for a long time. All I can find online is that "some people" may test positive with PCR tests for up to three months after infection. Just curious if that is common and if this will be an issue. She doesn't have any documentation of this Covid infection - I suppose she could go out and get a PCR test but that seemed unnecessary given her self-isolation. She's just worried that somehow once there she might be selected for a random PCR test and then be stuck overseas (the current US requirement for an antigen test for readmission shouldn't be an issue). Any thoughts on whether her worries are potential issues or decently remote as to not be an issue?