Can’t you use neem for stomach problems and why

Not all stomach ailments should not be treated with neem, but those with a cold spleen and stomach should not use it because neem is bitter, cold and toxic. You should consult your doctor for specific medication.
Neem is a qi regulating traditional Chinese medicine, which is mainly used to relieve pain by dredging the liver and draining heat, moving qi and relieving pain (relieving pain by regulating the body’s qi), treating pain in the chest and ribs (the chest and ribcage area collectively), breast distension and pain, hernia pain and pain in the epigastrium (stomach and abdomen) caused by liver and stomach disharmony, etc. It can also kill worms.
Neem can also kill worms, so it is also useful for treating abdominal pain caused by worm accumulation. It can also be used externally to kill worms and cure ringworm, treating ringworm of the head and bald sores.