Face getting darker, small red rashes under the skin that look like blood clot, muscle pain. can this be early signs of psoriasis? is there any test?

See Your Doctor Now: Symptoms given do not point to a specific condition & is not consistent with Psoriasis: a genetic, immune related disease that causes thick scaly skin in specific distribution/joint pain in 30%. Labs given also non-specific. Description given of face rash may be petechial (low platelets) & with muscle pain could be viral. Further work-up is needed. See doctor now for correct diagnosis & treatment.

No specific test!: Family history of psoriasis and exzema important. Clinical look at lesion most telling. But your description is too vague! Need more info. Thanks. Best, TCNMD PS: Severe allergies can give you allergic shiners, which you might be describing. Associated with allergies through chronic sinusitis!