Hi,

My doctor told me that due to high fever as a result you may have a relapse. This may be the case for a normal flu with high fever as well. Not only correlated to covid.
Hope it is only a side effect of covid and will pass soon and not a relapse. But I would suggest you to consult your doctor as soon as you can if your fever is not going down.

I wish you recover from covid very soon! Take good care of you.
Nurçin