My Sixteen Month Old Had Hand, Foot, And Mouth Last

My sixteen month old had hand, foot, and mouth last week. I have three other kids but none of them had or has yet caught it. The daycare had 4 other cases involving other babies in his class. I have cleaned everything got him all new cups and boiled pacifiers but yet I look at him tonight and it looks as if it may be coming back. How can I get rid of it before the blister show up because I can't miss another week of work? I may not have a job. Please Help!