May i take a pepto bismol (bismuth subsalicylate) tablets an hour after i had taken garlic echinacea? i have some nausea.

Stop self-treating!: Nausea may be GI-related (food poisoning, peptic disease, gastroparesis, due to biliary & pancreatic disease, gas/bloat syndrome, small bowel problems). Consider "central" causes: motion sickness, vertigo, migraine headache, brain problems (some very serious). Also, rule out infection (? urinary tract), medication side effects, pregnancy, & even reaction to stress. Find & treat the cause--see doc.