On Friday my daughter woke up with a rash all over her body I took her to the doctor they said it was an allergic reaction to something she’s eaten . They gave her piriton to take for a few days on Saturday the rash had gone and she was feeling better. This morning she woke up and was sick and is very pale as the days gone on she’s got her colour back but now has a high temp , no idea what’s causing this . Please help