Suggest Treatment For Mild Rash And Vomit In A 15 Weeks Old Child

my 20 week old son - corrected age is 15 weeks , born via emergency c sec i had major previa and haemmoraged and he was born not breathing , with fluid on his lungs nd was revived then ventilated and remained in scbu for 2 weeks - he has a virus 2 weeks after getting his first immunisations but i am concerned about his face being grey around his mouth eyes and nose, chest is clear he has a mild rash and is vomiting. i often thought the grey areas were wind but the eyes and nose shouldnt be so grey should they !? he sometimes wakes up gasping because he has missed a few breaths in his sleep ( apnea ? ) should i be concernedthat his oxygen levels are low? he was also born with blood level of 8.9 but turned out to not need a transfusion, his levels dropped to 8.6 at 4 weeks old but they ave not followed it up since. he does ave folic acid, sodium feredate andd dalivit daily so i presume these help maintain his levels. sorry if this is hit n miss info, so many points to make to try to get a more accurate diagnosis. eoh and he is still feeding and soiling nappies well sincere regards sincere regards