Read the post on rain I wrote in the Gen. Disc. forum. I dont know if this will help since your baby is so small and might be overwhelmed by rain. Algae and scum are the result of an unclean mix, and with most droserae things need to be kept clean for the best results. I think most growers are unaware of how "dirty" their peat is used straight from the bale.
There is no product that will remove the scum, and repotting pygmy species (which is often the best cure for other droserae) is never a good idea. You could remove some of the scum, but don't dig to close to the plant to do so. Then you can try flushing the pot with pure water daily (or as often as possible) with a gentle syringing. Add some silica sand rich mix as a topdressing and hope! Or possibly better yet, some ground up sphagum moss. Sometimes this works. Try to keep your moss (if you use this) moist but not wet.
With Drosera species, it's best to start clean and stay clean with Drosera cultivation, especially the pygmys which often resent repotting. Repotting plants in gunky medium is always in order, and most Drosera species take that with no problem....but the pygs are another story.
Fortunately, the gemmae season should bring you another chance, should the worst happen and you lose your plant. I'm rooting for you and your plant!