Eczema Treatment Care

My 2yr old daughter dribbles so much her lower face is covered in painful looking sores which the doctor said is contact dermatitis, the cream did seem to work but its got worse again. She isn’t teething because I keep checking. When she eats she gets her food all over her chin, she talks non stop & this seems to create a mountain of spit all over her mouth and chin. It was easy to control her dribble as a baby because she wouldn’t fight me keeping it dry, but now she won’t let me near her face and it seems pointless anyway as the slobber comes right back within seconds of me mopping it up.
Is it normal for a child this age to dribble huge quantities when not teething?