My my little brother got bit by something he has a couple little bites probably like six or seven of them in a little group and he doesn't say their mosquito itches there just burning more like but they do look like bug bites , what could it be ?

Can't tell: If it is a cluster, it is unlikely to be from mosquito. Also they may not be from a bug bite at all. See your doctor especially if the lesions get infected.

Clustered Rash: We do not know the age of your little brother which might guide us in learning about this rash. 6 or 7 little spots which look like "bug bites" to you is helpful. Anyone else have a similar rash? Is it increasing in size or number of areas? Are they crusted over? Is there overlying redness extending from the areas? Ddx: includes impetigo, mite bites as scabies, spider or mosquito bites