Consider acid reflux: Acid reflux can cause a sensation of phlegm. Minimize caffeine before exercise. Drink plenty of water during your workout. Reduce breath-holding during your work out. Avoid foods that cause reflux before exercising. You could try an OTC acid blocker to see if this helps. Post-nasal drip can also cause phlegm. If I can help, then join my care team & virtual practice at healthtap.com/dr-clarkeholmes
Answered 8/7/2016
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