I have been suffering from scalp dermatitis for nearly a year on the right side of my head a small lump has appeared it is not sore to touch and I have no symptoms. When I visted the Doctor she said it was soft and could be moved but to me it feels hard she said it was probably a swolen lymph gland but I am still worrying could anybody help me ? I have a cold and sore throat at the moment and a sore tooth could it be something to do with the dermatitis ? Thank You.