 [ Symptoms ] non itchy raised bumps at leg with central dimple viral or fungal bug bite [ Disease ] if it is viral there is absolutely nothing you can do about it and it is probably a virus called roseola you simply just have to let your body fight the virus on its own until it eventually overcomes it i personally had this virus before and it lasted up to three months if it is anything fungal it would definitely be itchy therefore i would safely rule that possibility out if it is a bug bite seeing as how most bug bites become itchy and somewhat sensitive it is unlikely to be a mosquito unless you are allergic to them and the bumps are massive in size my guess is that you have been bitten up by a spider of some sort yet not a black widow or a brown recluse seeing as how the center dimple of the bump would become much darker in color    and they tend to spew out pus as well