Talk to General Physician on Allergy Type Symptoms

My son is 5 year old..He was suffering eye inflammation with nose itching and skin itching also.he is taking t day syrup and myteka 5mg.I felt the shortness of breath so I take him for checkup doctor observe that his chest is not clear or some issue in chest.so he recommended a britanl syrup..it's been 15 days.He can not eat well not solid only milk with feedar.he is spitting a lot.and says something is stuck in my throat.and it seems food not going through throat.dr said throat is ok.little bit chest problem with allergies probably.i am too much worried about his health.any suggestions.cbc is quite normal.just esopilnis are high .