Yes. Make sure that baby products u r using r organic or made of natural ingredients. Mamaeearth baby products are best option. In fact it is Asia' first nature certified brand. Try it's mineral based sunscreen specially formulated for babies. Dermatologically tested.

Hi crying is due to colic pain and gases and hold baby vertically after every small feed and position properly to the breast so as to avoid air ingestion while feeding which is the most important cause of colic pain and gases and fuzziness and sleeping patterns differ in every baby and will vary till age of six months after that it will become constant gradually

Hi these are allergic rashes, have you given something different in food? And is there nay fever?

Hi are you taking calcium supplements regularly?

Sweety,

Check if it has any redness,clean with warm water,actually for mouth ulcers in babies can apply curd or honey thrice a day...

But don't know that baby is having it or not...

Once my son got mouth ulcers I applied this way,it was cured by a day...

My baby started doing after 5months

May be its due to dryness as weather is changing ,try mamaearth Milky white face cream ,it makes skin moisturised and soft all day

Hi pinch your baby while crying

Warm compress.

U can try prickly heat powders, they have special ones for kids I believe. My elder one has pretty sensitive skin so pediatrician suggested to avoid powders. I have been using Bioderma atoderm soap for bath, it has antibacterial and antifungal properties so it helps with most skin issues, including prickly heat as well. I apply aloe vera gel on the affected area, multani mitti helps too.