Here's a list for you of meds compatible with bfing (from kellymom.com)
Medications generally regarded as safe
Treat only the symptoms you have: avoid a combination medicine when a single one will do the job.
Short-acting forms of drugs (6 hours or less) are generally better than the long-acting varieties (but see the info below on the nonsedating antihistamines).
Use nasal spray instead of oral medications when possible (see below).
Take any medication right AFTER you nurse and only as needed.
The 2004 edition of Medications and Mothers' Milk by Thomas Hale, PhD has information on many cold medications (including specific guidance on combination products) in the Appendix (p. 874-889). Many of the active ingredients in cold and allergy medications are listed below.
Cough & sore throat meds
Sore throat sprays or lozenges are generally considered safe, as are cough drops. Avoid eating excessive amounts of cough drops containing menthol. Large amounts of menthol can reduce milk supply.
Many forms of Robitussin, Delsym and Benylin are considered compatible with breastfeeding. Always check the active ingredients, as there are many versions.
Name of medication AAP approved?* Lactation Risk Category**
Codeine yes L3 (moderately safe)
Dextromethorphan not reviewed L1 (safest)
Guaifenesin not reviewed L2 (safer)
* Per the AAP Policy Statement The Transfer of Drugs and Other Chemicals Into Human Milk, revised September 2001.
** Per Medications' and Mothers' Milk by Thomas Hale, PhD (2002 edition)
And you can take both ibuprofen, tylenol and naproxen (aleve) while bfing. Just avoid aspirin. Hope you feel better soon!