My Daughter Aged 13 Years Was Suffering From Viral Fever

My daughter aged 13 years was suffering from viral fever since 28th sept-fever settled after 4 days-she was only on paracetamol and fluids-since yesterday her feet and hands have become slight reddish with itching-incid-L given yesterday night-but redishness and itching still persists-doctor has now advised one tab of livocetrizine OD-is it ok or advise something better