Common symptoms - Skin: hives, itching, rash, flushing, swelling (face, arms, hands, legs). Mouth: itching, swelling (lips, tongue, mouth). Abdominal: nausea, cramps, vomiting, diarrhoea. Throat: itching, tightness, difficulty swallowing, hoarseness, cough. Lungs: shortness of breath, repetitive cough, wheezing, tightness of the chest. Heart: chest pain, loss of consciousness.