What's up @vickojay, it's clear you do alot for your skin from this post, you must be handsome, this post is very educative.

Dry skin caused by the removal of too much oil by the salicylic acid.
Itching caused by skin irritation
These side effects are only experienced because the product is new to you skin, you continue using this product, you skin begins to adapt and the effect of the skin care product begins to come into view.

Thoroughly true, even when I tried tydineal the face time, it was itching, and the next week my fave was smooth and my skin colour came out, the only bad thing is if you stop using it your skin returns back to the way it was before. Thanks for this post.