Clarithromycin
"In the past six years I have had three sinus infections.  This drug cleared it up in a short time with no side effects.  I suffer from IBS so my GI doctor recommends this antibiotic as it is more gentle on the GI tract. He also told me to take one Florastor probiotic capsule each day and to eat yogurt with active cultures  Have had bad results with Augmentin –  gave me raging diarrhea. Levaquin has some really serious side effects and affected my Achilles tendon. I don't notice vile taste - tongue burns, mine are vanilla flavored. If the size bothers you, tell doc to order 250mg size and take two. I had palpitations and anxiety tho and rapid heart beat for a while but could have been from Bentyl. Not sure."