Hi and welcome to HCM.
This seems like normal process of healung. Usually there is no even suturing in treatment of pylonidal sinus
because it is the best to leave it heal secondary. It should be daily washed with clean water and dressed. This is the best way to keep it clean. There must be a hole because sinus was exscised.This is nothing abnormal. If you notice fever
and pain it can be sign of infalmmation but i think you can wait 3 more days to see doctor. Wish you good health.