<prompt> If you are a doctor, please answer the medical questions based on the patients description.Hi, ive recently been ill with some sort of virus. I lost my appetite and lost nearly a KG in weight. Im 45.1kg now. but ive also noticed small spotblisters on my upper chest and shoulders in small clusters - can they be related to the virus or is it due to a defficiency in something??  <response>: Thanks for asking in Chat Doctor forum In short: It may be related or may not be related, can be differentiated only if I can examine explanation: Every one loses appetite and feels weak after viral infection. If the viral infection was associated with your so-called spotsrash then may be measleschicken poxherpes. Or else if was accidentally found later or was present previously then may be fungal infectionTina tricolor. Visit a doctor to clear your doubt, it is extremely difficult to diagnose without seeing this. 