Can a mosquito bite cause red and non-itchy bumps?

Hi,

Welcome to icliniq.com.

I have read your query and examined your picture (attachment removed to protect patient identity).

I want to ask a few questions.

1. For how long you are having these red non-itchy bumps?
2. Are they localized to one arm?
3. Are they painful?
4. Have you applied anything over these eruptions?
5. Any past history of similar kind of eruptions?
6. Are you on any supplements or medicine?
7. Is there any history of insect bite or mosquito bite?

These are all the questions required for making your diagnosis. With that much of the descriptions I can say it may be allergic contact dermatitis or insect bite hypersensitivity or urticarial vasculitis. I suggest you use Lacto Calamine lotion local application twice daily and one tablet Levocetirizine (antihistamin) once daily for five days. Consult your specialist doctor, discuss with him or her, and take the medicine with their consent.

I hope this helps.

Thank you.

Hi,

Welcome back to icliniq.com.

You are on Herceptin for the adjuvant for early breast cancer and Januvia Synthroid for diabetes. Your lesions clinically look like IBH (insect bite hypersensitivity) or may be rare possibilities of herpes zoster. In IBH previously you would not feel anything on the bite of the insect or mosquito, but later on due to sensitization these reactions occur. I suggest you to stop the application of Steroid immediately and just continue Lacto Calamine lotion twice daily and Levocetirizine as advised for five days. You need to observe if there is any group of vesiculation (fluid-filled eruptions) involved. The dermatome associated with pain localized to that dermatomes then it could be herpes zoster.

It looks rarer possibilities, but cannot be ruled out because you have diabetes and on immunosuppressive therapy. Review after five days.

Hope it helps.

Thank you.