Impurities

Alcohol being impure

Q: I have been reading online but there are different views. Some scholars say that alcohol is haram to consume but it is not impure in literal sense and not impure to touch. Similarly some scholars say it is haram to consume and also impure to touch. If we go to a place that serves alcohol will the table or other places be regarded as impure. Please shed some light.

Saliva of an alcoholic

Q:

1.If a person drinks alcohol is his/her mouth considered impure.

2. If their saliva touches us or something will that thing become impure.

3. If after alcohol someone uses lipstick will the lipstick become impure.

4. If the alcoholic person sleeps on a pillow and drools like their spit comes out in their sleep will the pillow be impure.

5. If their spit touches their hair and we touch the hair will we become impure?

Impurity on one's shoes

Q: It was raining outside, the sole of my shoes were wet, they touched the top part of my other shoe. The shoes are made of absorbent cotton material. I understand that doubt cannot uplift certainty. But I know that I must have stepped on some kind of najis some where so I think the top part of my shoe became impure, but even if I did there was no trace of it. Also before I stepped on my other shoe I walked for a bit on wet ground, would that have cleaned up the sole of my shoe? I suffer from waswasas as well.