I think I must have had an insect bite on my right hand. I had forgotten what insect bites can do. It itched a little and then went scaly. That was alarming as I thought I might be getting hives on my right side.
Over the last couple of days it has grown into a large C branded on the top of my hand. It's astonishing how useful this diary is - as I had completely forgotten about weals and welts. This happened two years ago when I was attacked by fleas and I identified the problem as papular urticaria.
In the light of today's news linking allergies to protection against cancer, it's maybe reassuring to know I can still get these bizarre reactions. However this particular welt itches like hell and I am wondering whether to try an anti-histamine cream, as I did before. I just hope it's not something worse - like scabies.