The symptoms of a severe drug rash caused by an allergic reaction may also include: Difficulty breathing or talking Swelling ...

On day 20, the rash continued to worsen and swelling developed in his feet, hands, arms, lower lip, and tongue. A diagnosis of nonspecific allergic reaction was made with potential causes of ...

Poison oak rash is an allergic reaction to the leaves or stems of the western poison oak plant (Toxicodendron diversilobum). Home remedies and medical treatments can help manage symptoms.