My mother is suffering from slight Chest congestion. She had a cold, runny nose till last week. Now left only with phlegm, which she is curing through steaming, drinking hot liquids etc. She never had fever, tiredness, or other breathing issues. Her oxygen levels are over 96. Can anyone guide me if it is safe for her to go and take a covid vaccination in her current state or should we wait it out till the congestion goes?