2 yr old-cough for 1 & 1/2month. Claritin (loratadine) 2 ml 1 week-cefdenir 3.5ml 10 days-bromphen 2 ml. No use. Can I use allerid 2.5 ml? Have used in 2014-2.5 ml

Don't use more meds. Kindly see your doctor again, ask for a second opinion, it's your right, or see an allergist/Immunologist, other reasons for your child's cough can be reflux, airways hyper reactivity, again sinus infection that might need different form of antibiotics, environmental causes, like second hand smoke or pets, and other reasons, check aaaai.org or acaai.org for an allergist in your area, good luck, .