Acyclovir is an antiviral medication used to treat the outbreaks of cold sores, shingles, and chickenpox. It does not cure these diseases but just decreases the severity and length of such lesions.

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Why do I have recurrent pain in my penis with blisters and itching?

Query: Hi doctor, I got blisters, itching, and pain in my penis seven months back. It recurred again and again for almost 12 months. So my doctor did HSV IgG and IgM tests. All my results came back negative. But he gave me Acyclovir 400. What does it mean? Do I suffer from genital herpes?   Read Full »

Dr. Bharatesh Devendra Basti


Answer: Hi, Welcome to HSV (herpes simplex virus) 1 and 2 IgM (immunoglobulin M) and IgG (immunoglobulin G) can show negative results even while having herpes. You can repeat the test again. It can come back positive now. Herpes is known for its recurrence. But it is not a dreadful diseas...  Read Full »

Are the lesions on my penis due to HSV infection?

Query: Hi doctor, I am a 40-year-old male with a weight of 90 kilograms. I have two lesions on my penis. I consulted a doctor and he told me that you have a recurrence of HSV. But I do not have a history of HSV. These lesions appeared after a day of receiving a handjob. But I did not do penetration and th...  Read Full »

Dr. S D Sinha

Infectious Diseases Specialist

Answer: Hi, Welcome to If the doctor tells about the recurrence, then it can be due to herpes zoster virus (HZV). Please mention whether you had chickenpox in childhood or later in adulthood. Chickenpox is caused by herpes zoster and it usually recurs when the immunity goes down. Herpes simpl...  Read Full »

Will my previous genital herpes infection be the reason for pain in foreskin?

Query: Hello doctor, I am suffering from genital herpes for the last one year. I took medicine, and it was cured. But still, now I feel pain on my penis foreskin after each month on the same portion where the first herpes blister developed, and the pain goes after two to three days without medication. I d...  Read Full »

Dr. C Sharath Kumar


Answer: Hello, Welcome to Genital herpes, usually 90% of HPV (human papillomavirus) infections are cleared by the body within two years of infection. Sometimes infected cells undergo a quiet or latent period with the first occurrence or a recurrence of symptoms happening months or years later...  Read Full »

With genital herpes, I had sex with my partner. Can my partner contract HSV?

Query: Hi doctor, When I was 16 years old, I got genital herpes and it was from my first sexual encounter. I am 20 years old now and experiencing outbreaks rarely. I have never taken medication for this problem and I left them to heal on their own to build my own immune response. Recently, I have started t...  Read Full »

Dr. Snehal Laul


Answer: Hi, Welcome to There is a high risk of transmission from your sexual history. He should get tested for both HSV 1 (herpes simplex 1) and HSV 2 (herpes simplex 2). Please mention about the history of genital herpes and when you become positive. Please mention whether you have a tinglin...  Read Full »

Kindly suggest a remedy for skin allergy.

Query: Hi doctor, I have skin allergy for the past two to three days. What is the proper remedy for this?  Read Full »

Dr. Radela Yvonne Cortes

Allergy Specialist

Answer: Hi, Welcome to I need more data. Is this itchy or painful? Do you have allergies before? The pictures you sent (attachment removed to protect patient identity) are reddish with some blisters and affect your body's right side. If this is painful, this looks like it is herpes zoster and...  Read Full »

What could be the cause of penis blisters?

Query: Hello doctor,I have blisters on the head of my penis due to masturbation without proper lubricant. I thought that it would heal by itself in a few days but now the blister popped and the skin is very tender and hurts to the touch. Also, another blister of sort, developed on the tip. It cannot be an ...  Read Full »

Dr. Saravan Pramod Settipalli

General Medicine Physician

Answer: Hello, Welcome to There are a few conditions which cause painful blisters even without a sexual contact, like genital herpes, primary syphilis, impetigo among others. Please provide more details: Are these blisters painful or painless? Is there a discharge that you noticed? Is there a ...  Read Full »

Will lesions on lips recur often?

Query: Hello doctor, I have lesions on lips reduced for a few days and now it started to come again. I have a burning and itching sensation. I took tablet Acyclovir 400 mg, Levocet 5 mg, and Acyclovir cream IP 5% for 10 days.   Read Full »

Dr. Deepti Shukla


Answer: Hello, Welcome to I have seen the image (attachment removed to protect patient identity). Apply Sodium fusidate cream twice daily on it for seven days, tablet Pregaba M tablet two times daily for seven days. I need to ask a few questions also. Did you take Acyclovir three times dai...  Read Full »

What to do for cluster of blisters present in the corners of the mouth?

Query: Hello doctor, Can you tell me if a cluster of blisters that went from deflated in the center to smaller clusters, to ulcers healing in three days sounds more like a cold sore or impetigo? It appeared next to a picked pimple by where I have had cold sores before, but this was a cluster of tiny blist...  Read Full »

Dr. Deepti Shukla


Answer: Hello, Welcome to I went through your history and photos (attachment removed to protect patient identity), you have developed herpes labialis also known as cold sore. Herpes labialis is a kind of viral infection with HSV (herpes simplex virus) virus. It is not a bacterial infection ...  Read Full »

Is it necessary to take Acyclovir for previous HSV 1 infection?

Query: Hello doctor, I am a 35-year-old male. No episodes of herps except chickenpox in childhood. No Infection of HIV, clinically tested every six months for the last seven years. My partner and I both are not having HIV (clinically tested). I had a bacterial or fungal infection with pus and redness in ...  Read Full »

Dr. Atishay Bukharia


Answer: Hi, Welcome to First understand the situation, IgM indicates recent infection and IgG indicate chronic infection. Since you have both the IgM negative, it means that there is no recent infection. Secondly, about 70- 80% of US population is HSV-1 (herpes simplex virus) positive, it me...  Read Full »

Are skin infections in face, and neck common in cardiac patients?

Query: Hello doctor, My mother is 57 years old. She is having skin infection around his face, neck, and ear area and she is a cardiac patient. For the past two days she is taking Surfaz-SN ointment (Clotrimazole, Beclomethasone Dipropionate, and Neomycin sulfate cream), Zenflox- OZ (Ofloxacin and Ornida...  Read Full »

Dr. Abhishek Ponathil


Answer: Hello, Welcome to Your mother has herpes zoster. It is caused by varicella zoster virus which causes chickenpox earlier in life and gets reactivated later in life to cause herpes zoster. She has to take tablet Valacyclovir 1 gm thrice a day for seven days. For the pain, tablet Diclof...  Read Full »

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