There is a good guide on the NHS website which describes various conditions affecting children. There is advice on how to diagnose them, how to treat them and if further advice should be consulted, view NHS childhood illness here
Children's Immunisation Schedule
Here's a checklist of the vaccines that are routinely offered to everyone in the UK for free on the NHS, and the age at which you should ideally have them.
Table to be added shortly ...
When Should I Worry?
Having an ill child can be a very scary experience for parents. If you understand more about the illness it can help you to feel more in control. This booklet is for parents (and older children) and deals with common infections in children who are normally healthy.