What causes itchy spots after contact with a stray dog?

Question

Hello Doctor,

I am a 34-year-old female. A few weeks ago, I picked up a stray dog. Soon after, she started having itchy ears and developing black spots on them. Shortly afterward, I began to notice similar spots appearing on my hand. I took Itraconazole once daily for 15 days, and the spot on my hand cleared up. However, about three days after completing the course, the itching returned, and my skin started to peel. I began another course of Itraconazole this time for one week, taking it twice a day. Again, my symptoms improved during treatment, but within two days of stopping the medication, the itching returned and has now worsened. I’ve started taking Itraconazole again, but the symptoms are more intense this time. I am not currently on any other medication and have no known allergies. I would appreciate your guidance on what might be going on and what steps I should take now.

Kindly advise.

Answer 1

Hello,

Welcome to iCliniq.com.

I understand your concern.

Based on the information you have shared, it seems you are experiencing recurrent fungal dermatophytic infections, most likely caused by Microsporum canis, a common fungal organism found in domesticated cats and dogs. Such infections can occur when in close contact with stray or infected animals. The recurrence of symptoms even after an initial improvement may be due to several contributing factors, including incorrect dosage or duration of antifungal treatment, re-exposure through contaminated personal belongings like towels and clothes, or underlying health conditions such as diabetes, autoimmune disorders, iron deficiency anemia, or hormonal imbalances that can compromise the immune system.

For effective management, I recommend applying Ciclopirox olamine (Batrafen) 0.77 percent cream topically on the affected areas once daily for 14 days. In addition, you should take Terbinafine 250 milligrams orally once a day for 14 days. It is also important to have your dog evaluated by a veterinarian, and if veterinary consultation is not immediately possible, you can start using an antifungal shampoo containing Miconazole as an alternative.

To prevent reinfection, ensure that all clothes, towels, and bed linens are washed in hot water. Regularly vacuum carpets, upholstery, and commonly used surfaces. Consider using antifungal sprays in areas of frequent contact to reduce fungal spores in your environment. If your symptoms persist after 14 days of treatment, further testing may be necessary to explore the underlying causes of recurrence and tailor a more specific treatment plan.

I hope you are satisfied with my answer. For further queries, you can consult me at iCliniq.

Thank you.