We are in oman, after recent cyclone , my son catch cold. Then after severe cold he got breathing difficulty. We immediately visited to hospital, there the Dr recommended antibiotics sefrin 125mg  and then she given nebulization then checked spo2 it drops 85 to 70 then after repeated nebulization he got corrected, But two days of antibiotics still the spo2 oscillating between 91 to 93. We are much worried. Is this is a emergency, some times it will goto even 96 to 97. But mostly in 90 to 93 . Kindly it is ok or need to visit to Dr.