<s>[INST] Hi, my son is 6 years old . 4 days ago after baseball he was complaining of itchiness , we gave him Benadryl - for allergy . The ff. morning front of his both legs developed reddened solid rushes until now, he is an active boy , minimal complain of itchiness and bit of a pain, pls advice [/INST] thank you for Q on HCMItchiness is related to possible skin allergy / inflammationI suggest you continue with anti histamine orally & also apply very low strength cortisone based cream if it is available from chemist directly without script ( depending on country you reside)If it doesn't settle then it will need to be looked at by DrHope this helps </s>