Hi,
Moon/Chandra in your son’s birth-chart is posited in the Lunar Constellation of Ashwini Nakshatra, ruled by Ketu. So, he started his life in an unfavorable Ketu Maha-Dasha. Incidentally, Ketu seems to be engaged in Graha Yuddha or Planetary war with 2nd lord of Speech Mars/Kuja and Saturn/Shani-dev is placed in the 3rd house of Communications. He is posited in the Lunar Constellation of Moola/Mula Nakshatra, ruled by Ketu again. So, Ketu’s foot-print and influence seems to be significant.
Kindly consider offering special prayers to Lord Ganesha, with unwavering faith, bhakti/devotion and a strong sankalpa on a daily basis. It would also make sense to consider chanting the following mantras 108 times daily:
Saraswati Mantra (Dasakshari) – Om Vada Vada Vagvadini Swaha
and
From Lalitasahasranamavali – Om Vagvadinyai Namah
Take care…