Thanks for writing to us.
In addition have you suffered from respiratory infection in the recent past? Do you also have fever in addition.
In case the answer to both /any is positive ,it could be a case of initial case of or starting point of Shingles/Herpes Zoster
also.In another instance it could be a c/o Sun burns /Prickly Heat/PhotoDermatitis.
Please use a soothening cream such as Calamine
Consult a Dermatologist
who will prescribe (if he suspects Herpes Zoster ,then only )Anti-Viral Antibiotics of Acyclovir
group and Ointments
of similar composition in addition to anti-inflammatory medications.
Wishing you a speedy recovery,
Dr Lt Cdr ASN Bhushan.