i started showing covid symptoms on Thursday n my 23 months old daughter n husband got it on Saturday early mrng...so my daughter 102 at sat 5am...than 1.45pm than 6.30 n than 12 ...n than again at 2.30 at night....same happened whole Sunday..so her pediatrician suggested to give calpol and ibugesic alternatively...n than Monday since mrng she was fine..n than suddenly at 7 in eve her fever raised to 101...n than again she was fine...whole day on Tuesday she was fine..n than suddenly on wednesday eve 7.30 her temp raised to 100...( almost after 48 hrs)...she has cold n cough...now my worry is y after 48 hrs her fever raised..is this a concern?? plsss someone read my whole question properly n than reply..ty