This is due to allergy to Noflux lysozyme chloride. Allergies occur when your immune system reacts to a foreign body. Foreign body may medicine like medicine, pollen, animal dander, dust and insect venom etc. When you have allergies, your immune system makes antibodies that identify a particular allergen as harmful, even though it isn t. When you come into contact with the allergen, your immune system s reaction can inflame your skin, sinuses, airways or digestive system. The severity of allergies varies from person to person and can range from minor rash to anaphylaxis — a potentially life-threatening emergency Advice 1. Immediately stop Noflux lysozyme chloride and never take it in future 2. Injection hydroxyzine intramuscular every 8 hours – three doses then hydroxyzine 10 mg every 8 hours per oral daily for next 6 days 3. Injection dexamethasone twice daily for 1 day then dexamethasone 0.5 mg twice daily per oral for next 6 days 4. You can apply calamine lotion for rash on face – three times daily – will provide soothing effect 5. Immediately go to hospital if you have any sign of anaphylaxis such as breathing difficulty, low blood pressure, nausea/vomiting, throat constriction, unconsciousness etc Thanks