Sorry to hear about your condition. Tamoxifen
does have a few side effects but the benefits far outweigh the risks associated with the drug. It cuts down the risk of cancer occurring again by almost 50%. The only precautions you have to take with tamoxifen is to get a regular PAP smears and bone density
Herbal medications can be useful sometimes but in this case numerous studies have proven tamoxifen to be beneficial.
There is no harm in using progesterone creams
with your breast cancer