Well this popped up in under 6 hours. I've now got it circled with a time on it to make sure this doesn't get any bigger, but dang it is warm to the touch! This is right on my waist line, but I'll still mark NSFW for my boxers I guess
Popped a milk bleb on my nipple and unclogged a milk duct that had given me mastitis (being treated). Felt so much better after the thick milk came out!