Dermatology Questions? Ask an Online Dermatologist.
This is Dr. Diego, experienced in Internal Medicine, Pulmonary and Critical Care.
What is your question? Do you have a picture of the bite?
Thanks for the picture. Where did he get the bite? It's the are itchy? Any new furniture or hotels?
Where did he go on vacation? Tropical areas?
The characteristics of the lesions could be from insect bite including mosquitos, bed bugs and ants. Given the localization of the lesion is likely to be a mosquito. Is any other area of the body involved?
In that case a mosquito bite is the most likely cause. It's unlikely to be from heat and sweat specially if is only in a specific area. Sometimes fungal infections can present like this. Let me know if you have any other question.
Yes I think is likely to be a mosquito bite. Bed bugs usually cause lesions in different parts of the body. Fungal infections trend to get worse with time.
It's possible but unlikely because is only in one area of the body.
Bed bugs produce more local inflammation and they have an anticoagulant that causes the skin to show dots of blood on the affected area. Ants could cause this lesion too but mosquito bites are by far more common.
It's likely to be a mosquito bite. Please rate my answer
I already mentioned that this could be secondary to other kind of insect bites like ants and bed bugs. The differential for this kind of lesion is broad but under your specific circumstances other things to consider are drug eruption and allergic rash. With all the information you gave me, those are the possibilities. Please rate my answer
He can apply a hydrocortisone cream if the lesions are itchy. If the lesions get worse or don't improve in 5-7 days he should check with his PCP.
Is an atypical skin problem. It usually solves by itself. The picture you sent me doesn't look like keratosis pilaris. Please rate my answer. Thank you.
Please rate my answer on the link.