Qingkailing if allergic can cause drug dermatitis, the main symptom is the emergence of dense distribution of flaky erythema, erythema can be based on maculopapular rash, papules and blisters such as this performance, some of the rashes can be fused into a piece or a large piece of the rash may be after scratching, scratches, scabs of the symptom, if the scratching is more intense can also be the emergence of vesiculation and oozing of the manifestation of the itchy sensation. If the scratching is intense, vesicles and oozing may appear, accompanied by itching. If there is a secondary bacterial infection, the skin may be red, swollen, reddish in color, with purulent exudation and pus crusts, and systemic symptoms such as fever and muscle pains may also occur.