Hi, you are having papular urticaria
, also known as lichen urticatus.. It is hypersensitive reaction to insect bite. I think , it may be due to flea in your case. Keep yourself away from insects. Take anti histaminics till itch is relieved. Take steroids
in tappering dose for 3 to 4 weeks. Apply calamine
lotion. You may take antibiotics for one week. Avoid stress and anxiety
. Take bath without soap. You may add dettol in bath water... I hope you will get benefit..