 [ Symptoms ] hives as a side effect of minocycline  my daughter has been on minocycline for a week today she woke up with an itchy patch of skin tonight there are more patches of itchy slightly raised skin is this hives and could it be a side effect of the minocycline [ Disease ] there are no studies that show a relationship from a childhood head injury to true autism but that is something that a neurologist should answer since there are many different types of autism and not all head injuries are innocent