Heat Rash

Was going to continue blogging about my Brighton trip but I don't really have the mood to edit the photo sizes. I am feeling so itchy all over because of my heat rash. I went to google about this condition. Thought that heat rash usually only last for a few days but mine has been there since last last Thursday (if I remember correctly). Anyway, I went to see the doctor last Sunday so this has definitely been ongoing for more than a week. Shit lor. Is this even normal?