Sir mere bache gale me infection hai

My son 13 years old he having a cough nd cold problem. Every three fourth day hehave to problem. Please dr advice me whatcan i do nd will i go which dr.please ineed to help.

Please advise 

hypothyroidism since birth means child born with improper thyroid gland or no thyroid gland at all. children born with it are bound to face growth issues like shorter than average height shorter than average limbs permanent teeth that develop later puberty that starts later slowed ment....