By cons, if breastfeeding is going badly (which was a bit early in my case), it relieves and allows proper healing. We can put after each feeding without the need to clean the nipples before returning the breast (big mistake if we do not want just crevice).
Moreover, we do not need to put a small amount so the tube lasts a relatively long time.
Finally, the price on Amazon is almost 4 times lower than that prevailing in my pharmacy !! So rather satisfied with my purchase!