Obvious is the neutral workmanlike opposite of subtle. In reality, according to my desk copy of Roget's Thesaurus, the true antonym is unsubtle. Written Aug 16, 2015 Â· View Upvotes.
Without antibiotics, you may be contagious for two or three weeks; most people who take them, however, are no longer contagious 24 hours after the start of treatment. Other people also experience relief from the symptoms of strep once they've started taking antibiotics.
I've heard once it crusts over and stops weeping, it's not contagious anymore. I've also heard you must be on antibiotics for 24 hours before it's not contagious. I've also heard 48 hours for the antibiotics.