I apologize for the length of my response, but I'm a peer counselor with Nursing Mothers Counsel and want to be thorough :)
No judgement, but is there a specific reason you're weaning at 4.5mo? The American Academy of Pediatrics, as well as several organizations worldwide, recommend exclusive breastfeeding until 6mo, then with the introduction of solids, as long as mom & baby are comfortable with the relationship. I know I'm on the extreme end for the typical United States mother, but my son nursed until he was 2.5 years old and probably would've gone longer, but I got pregnant with my now 6mo daughter.
If it's a medical reason, you could talk to a breastfeeding-friendly doctor/surgeon, lactation consultant or breastfeeding counselor to find out if you really need to wean for whatever medical procedure or drug is being prescribed. Dr. Jack Newman has a wonderful website that explains about certain drugs, etc at http://www.drjacknewman.com.
Another option if you want to wean your daughter off the breast only, is to pump and feed her your breast milk from an alternative feeding source, such as bottle, cup, spoon, etc. There is actually a newer group who are "exclusive pumpers." This way, she'll still benefit from the hundreds of advantages of breast milk, including antibodies and the perfect food for her whatever age she is. For the many benefits, if you're interested, you can go to http://www.promom.org.
Regardless of the reason, try to avoid weaning suddenly. This can lead to engorgement (especially at 4.5mo), plugged ducts, and even mastitis. NMC counselors, as well as LCs and Le Leche League, recommend dropping one feeding every 3-4 days to allow your body to adjust to the change. If your baby is feeding 8 times per day, this means ideally, it should take you 24-32 days to completely wean. However, time may be shorter or longer depending on how well your daughter takes to the bottle and how attached she is to nursing.
To help with fullness and aches, you can:
- PLEASE DO NOT BIND YOUR BREASTS! This is not recommended any longer, as binding can damage breast tissue.
- Use cold cabbage leaves in your bra (replace them when they wilt).
- Use ice/cold packs to relieve swelling, but be sure to use a barrier between the ice and your breasts (ie: towel).
- Take ibuprofen or Tylenol for any pain or ache.
- Express JUST enough to relieve some of the pressure, but not enough to signal to your body that you still want to make milk.
- Try not to pump, as this will also stimulate your breasts.
- Try not to take a hot shower, as heat will keep the milk flowing. You can take a warm shower, but try not to let the water directly flow on your breasts.
- There are also several herbs that you can use in your foods to help decrease milk supply, such as rosemary, sage, peppermint, parsley, thyme, and paprika. Some foods and others that have been shown to decrease supply include cucumbers, tomatoes and anything citrus, bananas, apples, chocolate, avocado, coffee (caffeine), soft drink, Vitamin C supplements, and tea. Keep in mind, these may need to be taken in greater volume than we would use in normal day-to-day life.
You can also check out our website at http://www.nursingmothers.org for much more information. Another great breastfeeding website, that may have more tips, is http://www.kellymom.com. Whatever you decide, good luck, and feel free to contact me off-list at ____@____.com if you have any additional questions.