The symptoms of dermatitis fast well include the improvement of the rash situation and symptom reduction, etc., as follows: 1. From the rash form, the color changes from bright red to light red or dark red, the rash area gradually shrinks, and normal skin is visible, with hyperpigmented spots or hypopigmented spots. If it is thicker dermatitis, it can gradually flatten and become thinner, and the scales gradually develop from more to less or no scales; 2. In terms of conscious symptoms, there can be severe itching at the beginning, which can gradually reduce or disappear when it is almost well, at this time, patients need to continue to take oral levocetirizine hydrochloride oral solution combined with compound glycopyrrolate capsule to strengthen anti-allergy treatment.