Hi,Dear thanks for the query to HCM.
Cause and treatment- for Your lump under rt scrotum--
In my opinion -the lump is of -boil? furuncle-as its painful and below the painful
cyst under your scrotum near to anus away from testicle.
The friction while walking explains it to be of the Furuncle as explained above.
The blood oozing today-explains that the ripened boil has given way due to the friction in that area.Hence its definitely a Boil?furucle near anus-
Treatment for it-
a-Surgeon consutlation is advised as its near the anus to rule out any relation to anal cause, which could be told only after his check up report.
b-If its only of Boil-as thought/explained above -
Antibiotics / pain killers / antiseptic dressing of the lump would resolve in 4-5 days time.
This would help you to plan a treatment for this query where due to lack of information I cant comment exactly.So I would suggest steps as above which would help you to plan your treatment.
So dont worry and act fast ASAP.
Hope this would help your worry to take proper steps for health.
Wishing you fast recovery.
Wellcome again if you have any more query in this regard.Have a Good Day.