Painful Blisters Near Anus: Causes and Treatment Options

Large blisters near the anus accompanied by pain and itching?

Hello, Doctor.
About a week ago, I started experiencing a tearing pain at the anal area during bowel movements, but there were no visible external injuries.
However, last night (Friday), I began to feel pain and itching in the skin near the anus and the lower part of the scrotum (the side close to the anus).
Then today (Saturday) afternoon, I noticed a stinging sensation, and upon inspection, the area that was itchy and painful last night is now red, swollen, and has developed many blisters.
Some of the blisters are larger, and the redness and blistering are all on the left side of my body.
The affected area extends from the left side of the anus, the left side of the scrotum, to the base of the penis and the left side of the foreskin.
When I retract the foreskin, the inner left side is red and has some blisters, and there are also one or two blisters on the left side of the glans.
Additionally, there are red and blistered areas on the inner side of my left thigh, extending as far as one-third of the distance between my anus and knee.
The areas with redness and blisters are painful to touch, and I experience a burning and painful sensation on the glans during urination.
These are my symptoms.
I have been feeling more fatigued lately, and I just developed a cold sore at the corner of my mouth last week, which coincidentally happened around the same time.
I am unsure if there is a connection.
Thank you for your assistance with these issues.

Niming, 20~29 year old female. Ask Date: 2016/01/16

Dr. Ke Fangxu reply Surgery

Based on your description, the symptoms seem quite severe.
This situation could indicate an untreated anal abscess, with the infection site continuing to spread outward.
It is recommended that you go to the emergency department as soon as possible.
In addition to receiving antibiotic treatment, you may also need to undergo incision and drainage surgery.

Reply Date: 2016/01/16

More Info

Dear Patient,
Thank you for reaching out with your concerns regarding the painful blisters near your anus and the associated symptoms. Based on your description, it sounds like you may be experiencing a condition that could be related to several potential causes, including infections, skin irritations, or even sexually transmitted infections (STIs). Given the complexity of your symptoms, it is essential to approach this matter with care and seek appropriate medical evaluation.

Possible Causes
1. Herpes Simplex Virus (HSV): One of the most common causes of painful blisters in the genital area is genital herpes, which can present as clusters of small, painful blisters that eventually rupture and form ulcers. The initial outbreak can be accompanied by flu-like symptoms, including fever and swollen lymph nodes.

2. Folliculitis or Follicular Infection: This occurs when hair follicles become inflamed or infected, often leading to painful red bumps or blisters. This can happen in areas where there is friction or irritation, such as the groin.

3. Contact Dermatitis: Irritation from soaps, lotions, or other products can lead to a rash that may blister. If you have recently changed any personal care products, this could be a contributing factor.

4. Fungal Infections: Conditions like candidiasis can cause itching, redness, and blistering in moist areas of the body, including the groin and anal region.

5. Sexually Transmitted Infections (STIs): Other STIs, such as syphilis or chancroid, can also present with similar symptoms.
6. Other Skin Conditions: Conditions like psoriasis or eczema can sometimes cause blistering and irritation in sensitive areas.

Recommended Actions
1. Seek Medical Attention: It is crucial to see a healthcare provider for a thorough examination. They may perform a physical examination and possibly take swabs from the blisters to identify the underlying cause.

2. Avoid Irritation: Until you can see a doctor, try to avoid any further irritation to the area. This includes avoiding tight clothing and using gentle, unscented soaps.

3. Symptomatic Relief: Over-the-counter pain relief medications, such as acetaminophen or ibuprofen, can help alleviate pain and discomfort. Additionally, applying cool compresses to the affected area may provide some relief.

4. Maintain Hygiene: Keep the area clean and dry. Avoid scratching the blisters, as this can lead to secondary infections.

5. Monitor Symptoms: Keep track of any changes in your symptoms, including the appearance of new blisters, changes in pain levels, or any systemic symptoms like fever or malaise.

Conclusion
Your symptoms warrant a prompt evaluation by a healthcare professional, as they can provide a definitive diagnosis and appropriate treatment plan. Conditions like herpes can be managed effectively with antiviral medications, while other infections may require different treatments. Early intervention is key to managing your symptoms and preventing complications.

Please take care of yourself, and do not hesitate to seek medical help as soon as possible. Your health and well-being are of utmost importance.

Best wishes for a speedy recovery.

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