My 3 Year Old Son Has Had A Fever Of

My 3 year old son has had a fever of 103 for a couple days I got the fever down to 99.7 now but his lips are tinted blue now he's complaining of head pain and now his whole body is shaking and hes not cold he said should i take him to the er again we were just there last night and they side it was just a virus would these be normal symptoms with a virus