During pregnancy, the motility of the stomach, small bowel and colon are reduced and this may lead to heartburn and constipation. Safe remedies are Colace (stool softener), Tums, Mylanta, and Maalox. Over the counter Pepcid and Zantac are safe to take if the prior medications do not relieve your heartburn symptoms. You should also increase your water intake, fiber and you may also use Metamucil. For low back pain or muscle aches or mild headaches, you can take Acetaminophen (Tylenol). You should exercise to include stretching , and you can also take a warm bath and/or use a heating pad. If you have cold symptoms, you can take Tylenol, Regular Mucinex, Regular Claritin, Regular Zyrtec, Benadryl (diphenhydramine) and Regular Robitussin. You may use Saline Nasal Spray and a humidifier. Penicillin derivatives are ok if they are prescribed. For Nausea and Vomiting during the first few weeks, you should eat small, frequent meals and avoid certain foods that seem to trigger this feeling for you. These trigger foods vary with different patients. You may also try Vitamin B6 (10-25 mg) three times a day; this has been studied and shown to be safe and effective in pregnancy. You should get your influenza vaccination if your are pregnant during the flu season. During your pregnancy, you may use Monistat or Gynelotrimin for vaginal infections.