Make sure your scalp is checked  - Here are two aggressive Basal Cell Cancers 

This lesion appeared on the scalp over a period of three days.  There was a creeping sensation under the skin associated with pain in the area.  The track you see on the picture is the virus travelling down the nerve fibres.  This need treatment with Zovirax  which should be started as soon as possible. 

This elderly lady was aware that this patch had appeared on her cheek six months ago and was growing rapidly.   Looking at the lesion it appears to be typical of a Solar lentigo however the story made it important to do a biopsy.  The biopsy shows that it is a Lentigo Maligna - Melanoma of the face. 

This next picture is what we usually see when a Lentigo Maligna is found on the face