After suffering soreness and itchiness of my scalp I've worked out it could be an allergy.
Also soreness of my left ear and also parts of my face.
I'm changing my shampoo but are there any other things I can do as a treatment?
Also, is it possible for the condition to spread internally, eg glands below ear and in back of neck.
I've spoken to the GP about it but not in detail.
I don’t know what was ‘wrong’ with Heathrow Airport yesterday.


It does sound as though you’ve nabbed it early and hopefully the meds will reduce the period of ill health and you’ll feel better soon. 
