Linda,
Sounds like this mom is just experiencing the roller coaster effect of a
returning menstrual cycle that will possibly be irregular for many months
(years) to come. The antibiotics is probably a non-contributing factor.
Lansinoh would probably not help. Mother needs to stay hydrated &
probably space feedings out during the tenderness days. As soreness
dissapates (within two-four days), toddler will increase feedings to get
milk supply back up. Also, a grin & bear it approach also is needed
though not fun. Personal experience with this!
Lora Gleaton