Hi my son is 20 years and has dengue, 5ft 8 inches, 210lbs, former cardio patient on vasotec and known as Asthmatic. He has experience back pains, headache, chest pain, and very high fever. He was given 75 Volatern but to strong. He since been placed on pandol and lots of water. He now expericing hayfever, itchy eyes with red patches under eyes. What can be use to stop the eyes from itching and face swollening?