Hair dye allergy scalp bumps with yellow water need to take anti-allergy drugs, at the same time can be appropriate oral or topical glucocorticoid ointment. 1. General treatment: should immediately stop hair coloring, and reduce the direct contact with hair coloring cream. 2. Oral medication: Anti-allergy medications such as loratadine and cetirizine should be taken under the guidance of a doctor to effectively alleviate allergic symptoms. 3. Topical medication: when there is yellow water, 3% boric acid solution or 0.1% isacridine solution can be used to disinfect, anti-inflammatory, astringent cold wet compresses, oozing reduced with glucocorticoid cream, such as mometasone furoate ointment. To prevent and control secondary infection, antibiotics can be added, such as ofloxacin gel. When the scalp is damaged due to allergic hair coloring, it is important to seek medical attention and follow the doctor’s instructions for medication. And scalp protection treatment.