Thanks for the query. Since you had varicella infection (chicken pox), you might be having a condition called telogen effluvium, which means hairfall secondary to an illness, surgery or any acute stressors. This usually settles in few months time even without any treatment. You should have a healthy diet and good sleep.
Next Steps
Apart from active pharmaceutical medicines, a healthy diet and lifestyle is mandatory to achieve results.
Health Tips
Avoid Self Medications.