Massive pain 2

Deb
So I wrote a post regarding the antibiotics I was on Sunday and Monday but now that I went back to the hospital they also find out that I have a stone in my salivary gland and they prescribed me clindamycin <---- has anyone taken these????
26 weeks pregnant and freaking out :( 
They also told me I have to suck on sour candy for the stone to pass through :(