Before you call the plumber, here's a popular 'technique'. This may or not work; and, may not even be recommended since you used drain cleaner...might react to the baking soda...not sure...
But, for future reference, this might help.
Instructions:
Pour a pot of boiling hot water down your drain.
Dump in about 1/2 c. baking soda. Let that sit for a few minutes.
Then, pour a mixture of 1 c. vinegar and 1. c very hot water down on top of the baking soda.
Cover with a drain plug (to keep the reaction down below the drain surface) if you have one and let it sit for 5-10 minutes.
Flush one more time with a pot of boiling water.
Why this works: The baking soda and hot water treatment will loosen up any grimy sludge that’s hanging out at the bottom of your drain, and the explosive chemical reaction with the vinegar will jolt it all loose. Then one final super hot-water rinse will make all the bad stuff go bye-bye.
Reference link found below:
https://crunchybetty.com/clean-your-drains-baking-soda-vinegar/
Best regards; and, we'll give you an A for Attempting to do a good thing!
Peace.
This idea works! Tried and tested a few times.
Hot water is key, it has to be boiling not just tap hot.
Praise God! ✌!
Wow, I like the non chemical approach. I'll try that next time! Not sure with the drain cleaner in there now.
I'm glad to see that you've prepared a beautiful meal for Bianca; so, this dilemma is but a memory!
Best regards!
Peace.