My 6 month old grandson was getting very high temp 39 took to hospital had many test and Lumber Injection incase menigitus, also had a slight rash (spots) on his head. They had real trouble trying to get blood, very hard with his veins being so small, also was in hospital over night with high temp, U T I. four weeks ago, has been up and down ever since. but very grissly wants to be held, but now has a LOW temperature, can you please give us any ideas what this could be. Much Appreciated.