Generally, hives appear as white or pink welts or large bumps surrounded by redness.
Other signs or symptoms that may occur include headache, malaise, nausea, vomiting, wheezing, difficulty breathing, salivation, watering, swelling, or burning eyes, fainting, fever, joint or muscle pain, gastrointestinal upset, fatigue, flushing, disorientation, glottis edema, increased white blood cell count, tremour, collapse, abdominal cramps, diarrhea, low blood pressure, asthma attack, chills and rapid heart beat.