Vaishnava Samhita. Purushottamadasa Charitam. Vol III Book VI Chp 24 Shlokas 18 - 22

रन्ध्रान्भावान्नासिकायां नासामौक्तिकमद्भुतम् |
न शेकस्तु धारयितुं सा राज्ञी दुःखिताsभवत् ||
द्रष्टुकामापि कृष्णस्य नासिकायां मौक्तिकाञ्चिताम् |
संप्राप नितरां शोकमनवाप्तमनोरथा ||
तदा स्वप्ने महाराज्ञा दत्वा दर्शनमद्भुतम् |
उवाच मधुरं कृष्णो भगवान् भक्तवत्सलः ||
श्रीभगवानुवाच 
मा विषीद महाराज्ञी प्रातरागच्छ मन्दिरम् |
तव नासामौक्तिकं तद्देहि मे हेमशोभितम् ||
अर्चकैः शोधयित्वा मे नासिकाग्रं विलोकय |
मौक्तिकं धारामूल्यं नासायां रन्ध्रमस्ति मे || 

As there was no hole in the nose of Lord Gopala, He could not be adorned with a nose ring. This made the queen very sad. She wanted to see the Lord adorned with that jewel. She was dissapointed when it did not materialise. Lord Krishna, the patron of the bhaktas, appeared in her dream and spoke as follows. 

Shri Bhagavan spoke

Oh, dear Mother! Do not feel sad. ome to the temple in the morning and offer your nose ring to Me. You can find a hoe in My nose with the help of the priests. The nose ring can be applied there.