<s>[INST] I currently take topamax, klonopin and singulair I felt a could coming on so I have been taking mucinex the past few days, for a cough and sore throat. The dr put me on medrol this morning and I broke out in severe hives all over my body. What do I do ? [/INST] Hello,Since when you're taking topmax or klonopin? May be your developed drug allergy to topmax or medrol. Better to stop the drug that causes allergy and consult your doctor immediately. Otherwise, it may aggravate the problem. Use tab. chlorpheniramine maleate in case of emergency.Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Penchila Prasad Kandikattu, Internal Medicine Specialist </s>