Welcome to the forum Robert. Need to ask few questions.
How old r u?
when did it last occur? Winter..? Summer..? Or..
How does the lesion appear initially.. Does it start with blisters or erosive surface with scales..?or if any u could describe..?
Does the lesion bleed on removing the scab?
What medications are you using now..?
do you have any family history of psoriasis..?
do you have any personal/family history of eczema..?
can u post the picture of the worst part without applying any medications..if possible, include the entire surface with lesion.
thank you