Hi everyone please can you give me some advice on colloidal silver? I have used it myself once and it was excellent but wanted to know what strenghth i should get for my 3 & 6 year old? And best place to order from uk. 3 year old has had really horrible chesty cough for 5 weeks now and have been treating him with help of my homeopath which has kept it from becoming more serious but its really hanging on now. Have just ordered some manuka honey syrup for kids as well. Any advice on the c.silver front would be much appreciated