What causes on and off red colored rashes all over body?
Patient: my 17 month old was prescribed distaclor and as a result of a side effect from it a rash broke out all over her body. (7 days ago). she was put on zirtec to control the rash. the rash is a lot better but after 7 days continues to re-appear and disappear(not as bad).one minute her face is completely rash free the next there are a few small red rash marks in different areas each time. is this common for the rash to disappear/reappear? Doctor: Hi...by what you quote I do not think this is drug allergy. Drug allergy doesn't come again and again like this even after discontinuation of medicine. By what you quote it should be an urticarial or a simple skin allergy.  Most important thing to be remembered is that it has a propensity to recur (called as second crop) within 10-14 days. If this happens, you can start using the same medicine but I suggest you get the kid evaluated with your paediatrician.Hope my answer was helpful for you.  I am happy to help any time. Further clarifications and consultations on Health care magic are welcome. If you do not have any clarifications, you can close the discussion and rate the answer. Wish your kid good health.Dr. Sumanth MBBS., DCH., DNB (Paed).,