This skin condition differs from rashes caused by pollen, dust mites, or oral medications. An allergic reaction can cause a neck rash with urticaria (hives), or raised, red, itchy bumps or welts.

An allergic reaction may cause a rash on a baby’s skin ... lack of appetite, or a stiff neck. Treatments vary based on the underlying condition. Anyone unsure about the cause of the rash ...

Hives are a type of rash that results from an allergic reaction, insect bite ... but most commonly appear on the chest, neck, arms, and legs. If you have hives Hives can have a few different ...

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.