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Q. What is the management for boils near rectal opening?

Answered by
Dr. Dilip Meena
and medically reviewed by Dr.Nithila A
This is a premium question & answer published on Apr 10, 2019

Hello doctor,

I am a 42-year-old man, active in sports. Recently about five days back, while playing football on a concrete floor, I slipped and fell on my lower back (coccyx area) and injured myself. I, however, can carry on my daily activities at slightly slower speed now, and there is slight pain on bending forward.

Since two days, a big boil has appeared near my rectal opening. It is dark yellow in color, may be filled with pus, not sure. It is painful whenever I pull in my pelvic or butt muscles. Stools are normal, luckily the boil is above the rectal opening, so no problem in passing stools, but while washing, I can feel the boil and it is painful.

I have pain also while walking. I have three questions.

1. Did the fall I had lead to the boil? Or are these two independent problems?

2. What is the reason for the boil?

3. How to treat it quickly?

Dr. Dilip Meena

Dermatology Venereology


Welcome to

1. This is most likely a bacterial infection affecting either hair follicle or perianal glands.

2. It does not seem likely that it is related to your lower back injury.

3. The causative agent is mostly the bacterium known as Staphylococcus aureus.

4. The pus has to be drained, for the immediate relief.

5. Most of the patients get better with antibiotics and anti-inflammatory drugs in a few days time.

6. So I will prescribe you the medications for five days and it is likely that it will get better.

The Probable causes:

Bacterial infection

Investigations to be done:

Not required right now

Differential diagnosis:

Furuncle, perianal abscess

Probable diagnosis:

Furuncle, perianal abscess

Treatment plan:

1. Capsule Augmentin 625 mg(amoxicillin+potassium clavulanate)thrice a day.
2. Capsule Bifilac 1 once a day.
3. Tablet Flexing twice a day.

All after meals for 5 days.

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Thank you doctor,

Just a quick question. In the prescription, the second and third items are given as zero days. I guess it would also be 5 days? Another query is if I just leave it like that (without medicines), how long would it take to cure? I have a background of not taking frequent baths. So my problem may be due to my improper hygiene?

Dr. Dilip Meena

Dermatology Venereology


Welcome back to

1. Sorry, I forgot to mention it. yes, it would be for 5 days also.2. Yes, it would subside eventually without medicines also, albeit rather slowly.

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