My 7 year d daughter has had a travelling rash for 4 weeks now..it's red very itchy hot to touch..complains of tum ache at 1st on and of lately sore throat but throat looks fine. The rash started 4 weeks ago covering legs and bum..that cleared then flared up on torso..back and front..that then spread to cheeks..then torso cleared..cheeks fading but now all.over arms. Dr querying if hsp . Blood tests to be done next Friday.. bug rash not purple? Any ideas?