Lily has a white bump, looks almost like a pimple/white head, on the base of her tail, on the under side right near her bum. I noticed her licking more the past two days and investigated it.
At a previous visit, the vet gave me some MalAcetic (brand) cleansing wipes for "cleaning skin folds, hot spots and other affected areas". I just cleaned the area with this and she hasn't gone back to lick it yet. I'd like to avoid a trip to the vet if possible, I think I'll just keep cleaning her for a couple of days and keep her from licking it so it doesn't spread. These particular wipes seem to be a bit stronger than our regular grooming wipes. I stopped using them for every-day use because they have a very strong peach smell that can be overwhelming. Besides the smell, I hope they are enough to do the trick and it's just something that needs to go away. If it doesn't get better or spreads any, I'll take her into the vet but it sounds like you moms have it figured out - either an allergic reaction or an infection. Hopefully I caught it early enough to just treat it topically on my own. I welcome any other suggestions, I will pick up a bottle of alcohol-free witch hazel to have on hand (great idea) but at least for now, it doesn't seem her tissue in that area is swollen at all.
Besides the licking, her spirits are fine and she's eating/drinking/pooping/playing and acting like normal Lily. Crossing my fingers this one can just be treated at home!