Cobra 120 Mg is a medication commonly used to treat erectile dysfunction. However, as an AI language model, I cannot provide personalized medical advice, and it's important to consult a healthcare professional for specific concerns. That being said, allergic reactions can vary from person to person. If you suspect an allergic reaction to Cobra 120 Mg online or any medication, it's crucial to seek immediate medical attention. Skin reactions Rash, hives, itching, or swelling of the face, lips, tongue, or throat. Respiratory symptoms Difficulty breathing, shortness of breath, wheezing, or tightness in the chest. Digestive issues Nausea, vomiting, abdominal pain, or diarrhea. Cardiovascular symptoms: Rapid heartbeat, low blood pressure, or fainting. Generalized symptoms Swelling of the extremities, lightheadedness, dizziness, or feeling weak. Remember, this is not an exhaustive list, and individual reactions may vary. Always consult a healthcare professional or emergency services if you believe you are experiencing an allergic reaction to any medication.