I have been sick fir 12 days, u believe I had the flu and now it has turned into bacterial because I am coughing up coloured mucus. My fever and aches have resolved but I noticed my whole back.is covered with small red bumps. I have been pretty much in the bed during this entire time so I am thinking they are heat bumps. They are not painful , they just itch a little. Just wanting to confirm my medical knowledge. Thanks

Of note I have not been on any antibiotics or different meds other than ofc cold an flu.