Thanks for your question on Health Care Magic.
I can understand your concern.
By your history and description, possibility of viral infection is more.
Viral infection can cause skin lesion on face.
This can also cause upper
respiratory tract infection (URTI). So your symptoms like
cough, throat pain, heaviness in chest is due to viral URTI.
So drink plenty of fluids orally.
Do warm water gargles 5-6 times a day.
Start antihistamines and anti inflammatory drugs.
Antihistamine drug will also helpful in skin lesions.
Don't worry, you will be alright.
If not improving in 1-2 weeks than
consult doctor.
Hope I have solved your query.
I will be happy to help you further.
Wish you good health. Thanks.