A reddish-purple, bruise-like 'petechial' rash caused by blood leaking into the tissues under the skin. Crucially, it doesn't disappear if you roll a glass over it. Fever, vomiting, cold hands and ...
Your skin is the largest and most exposed organ of your body, making it particularly susceptible to pollutants and irritants. Rashes are common skin conditions that are characterised by red ...