A 2-year-old has been diagnosed with moderate receptive delay and has problem in speech. Kindly help.

Hello doctor,

My 2-year-old was diagnosed with a moderate receptive delay and a mild expressive delay. When he was around sixteen months, he could say thank you, stop, mama, daddy, and even his sister's name. At about nineteen months he was diagnosed with an ear infection. The infection was treated, but there was fluid that probably remained for approximately six months without our knowledge. We found out only after he started to speak less and less.

His eardrums were retracting, but he now has tubes and can hear fine. However, he still does not speak. He points, looks are in the eyes, cuddles, smiles, kisses, does gestures, loves other kids and can retrieve items if we point to them, but sometimes it seems like he does not understand. Could it be because he spent several months hearing something different? I am worried even though the doctor can be told me not to. He is in speech, but it did not seem to be helping. Any advice round truly is appreciated.