Treatment needs to be interferon and ribavirin in order for it to work.
Treatment is very difficult and unless he has a lot of liver damage somehow already (which is doubtful as he is very young and hasn't been drinking or doing drugs or anything that will help contribute to the damage) I would hesitate treating until he is a bit older. Hep is a very slowly progressing disease and in many cases with good liver health practice....he could most likely wait for years until he is older/stronger/more mature to deal with it.
It's hard even for adults to manage - but you simply can't do one med without the other or the chances of success are minimal at best.
There are pediatric gastroenterologists in large cities with teaching hospitals. They do treat children. You need to take him to see one and take their advice. While the treatment is a rough one, I don't think it is too bad for children. If they can be home-schooled while treating, they generally take the treatment in stride and don't mind sitting around on the couch for months, which can really aggravate adults. He has a low viral load so there is a possibilty that he may respond so well to the standard meds that he may be allowed to treat for a shorter period. Take the pediatric specialist's advice.