I Had Flu-like Symptoms -fever, Aching, And My Calf Became

I had flu-like symptoms -fever, aching, and my calf became red and itchy. These symptoms only lasted for an hour and 30 minutes. I returned to normal, feeling fine. The only lingering symptom was redness on my lower calf, like a 1st-degree burn and itchiness. This is the third time this has happened in the last 2 years