Dyed hair scalp allergy bumps, to timely oral and external anti-allergy drug treatment, commonly used anti-allergy drugs are loratadine, cetirizine and so on. Hair dyeing scalp allergy goosebumps is a common contact dermatitis, the main reason is still due to skin allergy to hair dye, so timely control of allergic reactions is the fundamental treatment. First of all, stop using hair dye, the head of the residual hair dye as soon as possible to clean; can be taken orally anti-allergic drugs for symptomatic treatment, such as loratadine, cetirizine, and so on. If the oral anti-allergy drugs are not effective, you can also apply glucocorticoids such as halometasone cream or dexamethasone ointment. To go to the dermatology department of the regular hospital in time, under the guidance of the doctor for treatment.