BlistexMedicated Lip Balm Spf 15, 3 Count, Multi, 0.15 Ounce (Pack Of 3)

Is this better than Carmex? I've been using carmex, but now that its winter they don't work as well. Is this better?

We just returned from 10 days at the beach and my lips are so burned & look like I've been stung by bees. Does this work to protect the lips from sun?

Is this flavored or unflavored?

Is it safe to use it before going to bed? SPF is not needed at night right?