Hand, foot and mouth disease in young children

Has anyone had experience with this virus > Hand, foot and mouth disease is caused by the virus Coxsackie A. It’s very contagious among groups of children, but is a relatively mild and harmless infection.<
My 14 month old grandson has contracted this from a daycare centre (certain the other grandchildren will follow suit) and its hard watching a child's discomfort (day2) .. has anyone had experience in a natural treatment? Wondering if bentonite would help to clear up the blisters quickly.
Also I love CDS, especially in cold and flu season. Would love to hear from parents who use CDS with children for common ailments .. esp ages 1-5 yrs.
Would appreciate any help or advice and thank you in advance

Jim Humble does not speak about Coxsackie A in his book - just B - Sorry to hear about your grandchild's discomfort -