My son is 2 years old and he keeps getting sick from the same illness for already 3-4 months. He gets cold liek symptoms- sore thraot, heavy cough, high fever, irritability, clinginess, then he passes his illness to me and I also get sick. We stay sick for at least 3 weeks despite taking antibiotics prescribed by doctors. Then we stay healthy for only 1 week and then my son gets sick again from teh same thing and again he passes it to me adn again we stay sick for 3 weeks, adn this has been happening now for 4-5 times. plese help. thank you.