The symptoms suggest that your son has got some infection. I would like to know his Total White cell count as well (isolated increase in Lymphocyte count
needs to be interpreted along with total count)
He would need to be checked over to find out where the infection is. Is it ear? Throat? Urine? or Chest?
Based on examination findings, he may need antibiotics to get better along with the current medications. If he has vomiting
, he would need anti-vomiting (anti-emetic) treatment as well. If he keeps the medicines down his stomach, then only they would work.