A sore flesh coloured lump. About the size of a finger nail has reoccurred on my upper thigh. It is moist and peeling. Could it be herpes?

Likely a wart. This is not herpes. If you have a photo -you could show that to a HealthTap doctor or even go see a doctor in the office, I'm sure they could tell you what it is. If you see a doctor in the office, they may even be able to take care of it then and there with cryotherapy for example. Herpes is painful and is characterized by red blister like rashes. It would be good to get more info about your case.