Hi. My 6yo boy is allergic to many things. I.e. Trees, nuts, corn, bushes etc. we have been giving him OTC Claritin chewable a in the am. Benadryl prn but haven t had to. Started it 5 days ago. Now he has been coughing & cogested. Went to urgent care a few weeks back for same problem & guafenesin & promethazine syrups prescribed for the coughing & congestion. He didn t get a dose of Claritin today because I was afraid the coughing could be a side effect exacerbated from Claritin. I gave Benadryl once today.I m concerned about his coughing & breathing. They keep telling us it s a virus.They did do a CXR & it revealed something viral in the lower lobes. What should I do?