The local applications sooth the surface of the haemorrhoids and shrink the veins.
There are simple preparations such as Rectinol, which can be readily purchased from the Pharmacist over the counter.
In addition there are agents, which contain Cortisone. The Cortisone controls the swelling.
The agents such as Ultraproct or Scheriproct are more expensive.
The agents may be applied as a cream, ointment or suppository.