My baby was screaming so much that nothing could calm her down. Does anyone have any tips that worke…

Time helped. Warmth on the belly, a little massage, bringing the legs up, and skin-to-skin contact eased the discomfort.

Simethicone

Biogaia

Only time helped, a heating pad and Maxilac eased it.

Gas syringes, fennel water, and that's it

Depends on what's really going on. For gas, anything mentioned in other comments will help (gas relief tube, dill water, simethicone-based medications). If it's colic, only time and your presence will help.

We used medications (Biogaia, Espumisan) + carried him upright for 15 minutes after feeding + used special holding positions + a warm compress, massages, and exercises. This combination helped, and the colic lasted until 2 months.

Mariya We didn't give dill, as the pediatrician said it can cause even more gas, and it's individual. We also didn't use tubes and tried to avoid that as much as possible.

I gave lactase+simethicone+probiotics to everyone.
My older daughter turned from a sweet baby into something else within a month. She was bloated like a balloon, simethicone helped, but
strictly from 1 AM to 5 AM she was restless and only slept in my arms and while moving. After about 10 days of nighttime walks of 5 km down the hallway, I decided something had to be done, and that's when I found this combo.
About the third night, she started sleeping from feeding to feeding.
I immediately started giving it to the little ones upon returning from the maternity hospital, without waiting for things to get bad.

A warm heating pad on your belly and carry them upright or on your stomach.