hello there im 26years old male .for about 5years now ive been getting very bad dry red sore skin on my face .i have good days then weeks of bad .ive been going to my docs and seen different docs but all they do is give me different creams which work some days then other days they all seem to make my skin more red and sore.all the docs tell me is one tells me ive got rosacea the other doc told me ive got Seborrhoeic dermatitis ? i asked if i can see a dermmatologist but seems to just keep trying creams .why is this ? can i be tested to see what i have got ?