Can you guys tell me what you know about long Covid. My friend has had Covid for about 17 days now, I mean she still has flu symptoms. She is extremely nauseous, light headed, weak, fatigue. All the symptoms and no improvement for 17 days. Her oxygen is still very good 99-98. So she seems to be ok as far as the life threatening part may go, but is there something that can help her improve a bit faster