Hi,
Thanks for posting in HCM.
Well, after going through your description, it appears that itching sensation what you are having could be due to two reasons:
1. Pin worm infection
2. Fissures in anal cavity
For pin worm infection, get your stool examined for the parasite or eggs. If it is positive, then you need to take Tablet.
Albendazole 400 mg Orally once and repeat again in 2 weeks.
If stool examination doesn't have parasites, you need to get examined by a Surgeon for fissures and treated accordingly.
In the mean time, for itching to get controlled, you can take Tablet.Levocetrizine 10mg once a day.
Hope the information provided would be useful.
Wish you good health and speedy recovery.