Adenoids 4 Year Old Son. Option?

My son is 4 year old and he has swollen adenoids and because of that his sleep is disturbed. Snoring like adult, mouth breathing, open mouth, hearing difficulty sometimes, irritated, as if like sleep Apnea. I consulted ENT specialist and after seeing X ray he suggested adenoid removal through surgery (special instrument where there. Will no blood loss but I have heard that post surgery complications might arise like slow speaking, impaired speech, hoarseness of voice, change in voice etc). I am not interested in surgery at this age. Any idea about homeopathy or Ayurvedic option? Due to this problem he has frequent coulgh, cold and allergy, runny nose , congestion etc. Actually because now this his day to day life has disturbed. Any suggestions.?