Not Dengue fever

I hatee when my kids are sick, specially when the fever’s temperature are unstable ( goes up and down) . Just like three days , my boywas high with fever and with rashes on her legs. I told my hubby, it can be “Dengue Fever” but when I consulted my brother-in-law who is a medical doctor he told me not to worry. My son didn’t manifest signs to consider it “Dengue Fever”. Now, he’s well . Thank God.